Zack and Cody meet Max and Tapeworm and invite them over, but when the Drew Crew finds out that they live in the Tipton Hotel, they suddenly want to hang out with the twins instead, leaving Max and Tapeworm behind. Meanwhile, Maddie tutors London in Math, and London gives Maddie advice on how to talk to the hotel lifeguard, Lance.

A beauty pageant checks into the Tipton to participate in a beauty contest. Cody bumps into a girl named Rebecca, and he discovers that he likes her. When he accidentaly enters the beauty pageant, Zack convinces him to stay in so they can win the 2,000 dollar prize so they can buy bikes, which they couldn't afford.

Guest stars: Stephanie Hodge as Brianna's mom, Victoria Justice as Rebecca, Lisa Long as Bev, Skyler Samuels as Brianna, Matt Winston as Tim, Camille Smith as Tyreesha

Mr. Moseby gives Zack and Cody tickets to a baseball game while the health inspector arrives at the Tipton. Unfortunately, the boys arrive before the inspector does and due to Zack's rat (and Cody's, which he stole as part of their science project), it causes chaos in the hotel, getting Mr. Moseby fired in the process. Together, they must divise a way to get Mr. Moseby back.

Zack and Cody get grounded for rollerblading in the lobby, injuring Mr. Moseby in the process. When they find out a famous couple is getting married at the hotel, they buy a camera off Maddie to take a picture of the kiss that was rumored to be selling for 20,000 dollars. Zack sneaks into the wedding and takes the picture, only for Maddie, Cody, and Zack to be busted by Mr. Moseby. The boys are grounded again for another week after Carey finds out.

Arwin, the hotel engineer, sends Carey flowers and a poem. However, she thinks they were sent by Serge the concierge, who when asked, lied to Carey about the flowers and poem. When Zack and Cody find out, they help Arwin tell Carey that it was him who sent the flowers. Meanwhile, London's father (the owner of the Tipton) is attending her father-daughter dance, but he fails to show due to usual circumstances.

Zack and Max enter GoDance USA, a dance contest. However, when Zack hurts his ankle by jumping off the bed, Cody has to take his place for him, despite being a terrible dancer. Meanwhile, London lends Maddie money for her parents' trip to Paris, but then to owe back the favor, Maddie becomes her servant until London is paid back.

Note: Cody makes a reference to the Missy Elliott video for "I'm Really Hot", which guest-starred Alyson Stoner
Guest star: Alyson Stoner as Max

Maddie's high school prom is coming up, and Zack finds out by throwing it at the Tipton. When he overhears her saying that she likes a guy who is older than her by three years, he thought it was him, not Jeff(the guy she liked). Meanwhile, a circus comes to the Tipton, prompting Cody to act like a mime. When Zack gets his heartbroken by Maddie, she gets her heartbroken by Jeff, who has a college girlfriend. Maddie then agrees to dance with Zack.

Note: In the end of this episode, Maddie makes a deal with Zack. She tells him that she will dance with him at his prom, if he dances with her at her prom.
Guest star: Monique Coleman

Zack, Cody, Max, and Tapeworm organize a band called Rock Squared for battle of the bands, but due to fighting, Zack and Cody quit the band at different times. On the day of the event, Max locks the twins in their closet, but they find their own way there, provided by Arwin. Meanwhile, Maddie and Lance's band Waterworks for battle of the bands instruments' are funded by London after they promise she can be a back-up singer, but she is a terrible singer.

Esteban is accused of a jewelry theft after someone's jewelry was stolen. Zack and Cody try to prove it wasn't him, but they end up crashing a Bar Mitzvah, in which they get punished. Meanwhile, London can't bring her dog onto her dad's ship, so Maddie takes care of Ivana (her dog) while she's gone. When Zack and Cody overhear the real thieves talking about heading up to London's suite, the twins, Esteban, and Maddie all set a trap to catch the real thieves.

Note: This is the first time we see the "S.S. Tipton" when London is on the phone with Maddie. The life preserver says "S.S. Tipton."

When Zack and Cody's football breaks a painting hung up in the hallway, they find an article on the back saying that someone was coming back for his treasure. Desperate, Zack, Cody, Maddie, London, and Esteban all imagine what their life would be like if they found the treasure, despite London already rich. They all search frantically for the treasure, but they end up breaking into the bank of Boston. In the end, the real treasure was Muriel.

Ilsa, the hotel inspector who attempted to replace Mr. Moseby as manager of the Tipton (see episode 4), returns and informs Mr. Moseby that she is the manager of the hotel across the street. The son of the rival hotel owner likes London but the owners of the hotel hate each other. Maddie helps them meet behind everyone's back. Zack tries to make money from Cody's cookies which are the best some people have ever tasted.

Mr. Moseby takes Zack and Cody to a baseball game, but when he accidentally catches a baseball that makes the Boston Red Sox lose the game, everyone in Boston hates him. Maddie attempts to stop her hair from frizzing before going to a blind date London set up for her with a boy who sweats when he's nervous.

Jesse McCartney stays at the Tipton. London and Maddie try to see him while Zack obtains souvenirs to auction off to other fans. Cody works on his science project, a high frequency laser, and Arwin helps him even though it is against the rules.

Zack gets a bad grade in school and Carey says he will have to go to summer school if he can't keep his grades up. However, after he finds out that Bob gets more time to complete tests because he has dyslexia, Zack pretends that he has dyslexia too. Mr. Moseby loses his voice, causing havoc in the hotel. London and Maddie play chess but London keeps winning so they keep playing until Maddie wins. When she can't, London eventually lets Maddie win.

Guest star: Charlie Stewart as Bob

Everyone's plans for Christmas are cancelled when a snowstorm traps everyone in the Tipton. Carey and the boys are stuck with Kurt. After Cody sees Carey and Kurt hugging he thinks they are getting back together. Maddie tries to get an expensive present from London by writing her name on all the Secret Santa slips, and asking London to pick. In the end though, Maddie is disappointed when London gives her a sweater that she sewed herself, with no hole for the head because there is a third arm instead. Mr. Moseby has to have Arwin's help to keep everyone in the hotel warm by firing up a furnace with ripped-up furniture. While this is happening, a couple named Mary (who is expecting a baby) and Joseph come to stay at the Tipton on Christmas Eve, and she goes into labor, but can't make it to the hospital because the roads are closed. Finally, Mary must give birth to a beautiful baby girl in the Elevator.

Max kisses Zack after they win a basketball game, then Zack insults Max because she feels bad that she really likes him. The basketball team then makes him go on a date with her so that she'll feel better, but then the date goes horribly wrong, with Zack revealing it wasn't his own decision to come, and Max feels worse than ever. Maddie helps London with the shopping problems.

A classmate named Agnes (Allie Grant) falls in love with Cody because he is the only pupil who isn't mean to her. She asks him out on a date, and Cody gets Zack to go on the date and revolt her. Agnes finds out it's really Zack, not Cody, on the date, and begins to like him, too. London sets up her dog Ivana on a date with another rich dog. Ivana doesn't like the other dog, and falls in love with Maddie's dog, Scamp.

A commercial for the Tipton is being shot at the hotel. All of the employees want to audition. The director didn't like anybody who auditioned, but picked London just to suck up to Mr. Tipton. London is horrible, so she is fired and replaced by Mr. Moseby who trips and breaks his leg, so Carey (who had previously dated the director) does the commercial.

London likes a merit scholar (Zac Efron), and Maddie helps her to trick him into thinking she is smart. Cody moves into the coat closet because Zack is too messy and doesn't clean his side of the room. To Zack's surprise, Cody makes the room more "home" like by putting in a flat-screen TV and more.

The French Ambassador and his daughter visits the Tipton Hotel, and both Zack and Cody develop a crush on the daughter, although neither of them knows French. Following his mom's advice, Cody locks Zack in a coat closet, then hires Mr. Moseby to translate for him. He eventually gets to dance with the daughter, but while doing so, Zack arrives with a card full of 'compliments' for Cody to say to the daughter. They are actually insults and the daughter goes to Zack. It is Bob, who speaks fluent French, who gets the daughter at the end. Meanwhile, Esteban is upset when London can beat a street thief but he can't. To cheer him up, Maddie arranges a plan for Arwin to pretend to be a thief and let Esteban defeat him. Things go wrong when Arwin forgets about the plan and Esteban must fight a real thief instead.

Maddie requires Zack and Cody's help to run a day care center. London takes Mr. Moseby and Carey to yoga lessons, but when London doesn't like the yoga teacher, she decides to be the teacher.

Mr. Moseby receives information that a food critic called Bernard Burnaise is coming to the Tipton to try out the food. He is told that Burnaise has three different disguises: A middle-aged woman, a Chinese man with a long beard, and a cowboy. Mr. Moseby then hires Zack and Cody to sneak around the hotel and find out who exactly is Burnaise. They conclude that a Texan cowboy is actually Burnaise and Mr. Moseby orders Chef Paolo to cook a wonderful meal for him. Things take a turn for the worse when Chef Paolo quits after being insulted, and Cody must take over, having London, Maddie, and Zack as his kitchen staff. What they don't know is that although the cowboy is impressed with his meal, he is actually not the real food critic, who suddenly appears to give the Tipton another chance when he realizes the situation and the struggle to serve the cowboy. Chef Paolo then decides to go back to work at the Tipton, where his being in charge assures that the Tipton will get good reviews.

Zack and Cody try to save the Tipton's carriage horse (Tippy) from being sold to a mean lumberjack when the horse carriage driver Henry gets retired. London borrows Maddie's great grandma's brooch, but when she loses it, Maddie makes her feel bad. Mr. Moseby arranges a banquet with Mrs. Delecourt. The boys sneak Tippy into the hotel and have him stay with Arwin, but then Tippy escapes so the boys look all around the hotel. London tells Carey that the broach is in the trash but she's not looking there. But Carey tells her that a good friend would help look for it. So Arwin and London look for it in the dumpster and run into a homeless guy. At the end, Mrs. Delecourt convinces Mr. Tipton not to retire Henry, and the homeless man comes to the hotel with Maddie's brooch.

London has transferred to Maddie's school and causes her to get a detention, later they pretend to be nuns from Finland. Zack and Cody make a hole in a wall, and Arwin helps them fix it. Zack and Cody then discover that they can see soccer girls in the next room, so they invite their friends to look in the hole too. They later get found out by Mr. Moseby and Carey and they all end up with a sore eye.

Zack and Cody both run in a school election, and London and Maddie take sides: Maddie tries to help Cody and London tries to help Zack. At first, Zack was got more attention (by making lies that the students will get ice cream and a skate park if he is president). Later, Cody gets the attention after Zack quit because he thought that Cody's ideas were better and he would want him to be president.

London steals Maddie's idea for a school assignment and turns it into a famous book. When London's theft backfires because Maddie's idea violated a copyright law from a previous book, she is sued for a million dollars. Meanwhile, Cody signs up for an advanced Calculus Math Class covering tables, Conversion and Convergences, but no one, even the teacher, shows up. Cody is jealous that Zack is acing woodshop, and signs up for it instead. He does not know anything about wood and ends up getting his first demerit and C.

Maddie and London's 16th birthday parties are scheduled on the same day, even though London's birthday was 6 months ago. London refuses to change her date out of selfishness and bribes people with gifts if they come to her party. Cody gets Maddie the perfect gift. Zack wants it, but Cody won't give it to him; he instead helps find Zack a suitable gift. Aside from her family, only Zack shows up at Maddie's party while everyone else goes to London's, thus earning a hug. Maddie and London both have a miserable time and in the end, reconcile and merge parties.

The Tipton is having a twin convention. Zack forces Cody, who was recently dumped by his girlfriend Irma, to go out on a double date with Janice and Jessica (Camilla and Rebecca Rosso), who are British identical twins. Maddie and London also go on a double date with twins, and Maddie ends up dating the geek twin who is really smart, yet disturbing; while London gets the handsome twin who is just as dumb as she is.

Note: When Bob tells Cody that he has been dumped by Irma, he says "Irma told Kim who told Phill who told Ashley who told Brenda who told Dylan who told Cole who told me." The names used are the first names of the cast members in the reverse of the sequence shown in the opening credits.

Zack wants Cody to drop out of the junior spelling bee because he owes the $30 to his competitor. London and Maddie do community service. London sees that her friend got in the newspaper, so London brings the paparazzi with her. Sister Dominique also gives all the credit to London while Maddie, Corrie, and Mary-Margaret are the ones doing ALL the work, and Maddie becomes infuriated as a result.

Guest stars: Vanessa Hudgens, Monique Coleman

When the Tipton staff keeps losing at sports against Ilsa and the St. Mark crew, Zack tells them he is a good bowler, so they decide to play bowling against them. Arwin, however, has a fear of bowling, and quits. Zack is the best bowler on the Tipton team, but gets grounded for playing a mean trick on Cody and can't help his team in a bowling contest against the St. Mark hotel, so Arwin has to fill in for him, regardless of a bowling accident that he experienced years ago.

Zack befriends a rich boy named Theo who gives him expensive items in order to buy his friendship. Meanwhile, London and Maddie have to take care of a baby simulator for school, which keeps them up all night. Maddie mainly does all the work, while London does hardly any except buying him expensive clothing and giving Esteban the position of a nanny.

Guest stars: Vanessa Hudgens, Monique Coleman, Mike Weinberg

Arwin builds a machine called the P.U. (Parellel Universalizer) that can take you to an alternate universe. Zack and Cody use the machine to travel to a universe where everything is how they like it, but completely opposite of the normal universe: Paris Hilton is President, George Clooney is on a coin, The Tipton hotel is the Fitzpatrick hotel because Maddie is the one who is rich, and not London. Carey is a successful singer, with Arwin being her producer (Carey is the one who has a crush on Arwin in the parellel Universe, not the other way around). Mr. Moseby's nickname is 'M' and he loves playing in the lobby and disturbing the guests. Lastly, Esteban is a cleaning lady. After spending a few days there, they become tired of it and return to the real universe.

A hotel patron claims he fell on Zack's skateboard. Zack and Cody find out that he faked the accident to get free things from the Tipton. The Tipton staff have to serve their "injured" guest with the best service they have, or risk the hotel's reputation being trashed by the man. (Cody says that his mom got the twins skateboards at a garage sale. In the episode Kept Man, he says she got them for free at Cheap Charlie's).

Absent: Brenda Song as London Tipton

Zack wants a job on the school paper because the only other job was on the band. He then uses his part of the paper (the "Ask Shirley" column) to get a girl named Darlene. London has trouble getting to sleep because there are diamond dust bunnies under her mattress.

Raven Baxter visits the Tipton and has a vision that Carey's birthday party will be full of chaos. Maddie tries to get London to wear Raven's dress but London doesn't want to wear it, as it was not made by someone famous. Maddie tricks London into wearing the dress but London finds out, soon Hannah Montana shows up at the hotel and also wants the dress, so she fights for it with London.

After they miss the bus, Zack convinces Cody to skip school and go to the mall where they meet Cody's favorite band, "Everything Stinks," who are shooting a music video. However, when Carey arrives at the mall to shop, the twins try to go unnoticed. Meanwhile, London and her new step-mother have trouble getting along.

Zack and Cody are in a school play. Cody and a girl named Gwen (Selena Gomez) are going out and Zack likes Vanessa. Zack gets a role in the play where he has to kiss Gwen. When they are practicing the kiss, Gwen starts to like Zack. Zack doesn't like her back. Vanessa likes Cody. Cody changes the kissing scene with help from Agnes (because she couldn't stand to see Zack kiss another girl). London changes the look of the hotel to bring good luck Feng Shui,the arrangement causes more trouble than good. At first, Maddie finds a $100 bill, Esteban's parents get rich, and Moseby gets an exotic vehicle because his breaks down. But, Maddie is arrested since the bill was a fake, Esteban's parents go bankrupt, and Moseby's "exotic vehicle" is a bike.

Guest stars: Chris Doyle as Messenger, Gage Golightly as Vanessa, Selena Gomez as Gwen, Allie Grant as Agnes, Ernie Grunwald as Mr. Forgess, Asante Jones as G-Man, Loren Lester as Man, Adrian R'Mante as Esteban, Charlie Stewart as Bob

It is International Week at Zack and Cody's school. A Japanese singer (Kumiko Mori as herself) visits the Tipton, and Zack uses her for his school project. Meanwhile, London gets stuck in her closet with Maddie. When Zack loses the singer at school, Carey, Cody, and Zack end up performing for a large Japanese audience, until Kumiko returns.

Cody is concerned about Carey's new boyfriend, so he calls his father to the Tipton. Maddie plays a trick on London to get her to play volleyball well.

Esteban starts a ballroom dancing class to help earn money for his sister's quinceañera (15th birthday party, similar to a 'sweet 16'). Mr. Moseby schedules a ballroom dancing competition at the Tipton. The gang enters to win money for Esteban's sister's quinceañera.

Note: Jared Murillo, Ashley Tisdale's then-boyfriend, has a cameo in this episode. He is seen in the dance competition, but is not credited.
Absent: Ashley Tisdale as Maddie Fitzpatrick
Guest stars: Camilla Rosso, Rebecca Rosso, Rip Taylor, Ashly DelGrosso, Louis van Amstel, Cheryl Burke, Alaina Reed Hall

Zack gets scared by a horror film about zombies, which their mother has told them not to see, and Zack starts to pile furniture against the hotel door in the lobby when he's sleepwalking. London pretends to be poor to impress a boy.

The boys become Wilderness Scouts, with Mr. Moseby as their leader. When all of their food disappears, Zack saves the team from starvation by finding wild food. Cody is jealous, and when he meets an old man (Tom Poston) who gives him food, Cody lies to the team and says that he found it himself. While the boys are away, Carey tries to have free time, but Maddie and London keep bothering her about a guy Maddie is dating. The guy is London's old boyfriend and she still likes him.

Note: This was Tom Poston's last acting role before his death.

A hawk makes a nest at the Tipton and causes havoc, so Mr. Moseby scares it away. When Cody finds that the hawk laid an egg, he cares for it while Zack films the hatching of the egg to sell on the internet. Cody continues to care for the baby hawk after the egg hatches, but when the baby hawk is ready to be released into the wild, Cody has a difficult time letting go.

Absent: Brenda Song as London Tipton

Zack and Cody try to find summer jobs, so they convince Moseby to let them have the lounge on Monday nights, and they start an underage club. London gives Maddie some of her homemade beauty products called Simply London, but turns out to have a side effect.

Moseby's grandmother, Rose Moseby (Phill Lewis in a dual role), comes to visit, and helps Zack with his history paper. But, when Zack gets a "D" and a week of detention, Zack gets help from Grandma Moseby to prove Zack's history teacher, Mr. Dowsh, was wrong. Meanwhile, London gets a job at Cluck Bucket with Maddie. When London causes Maddie to get her old job back as "Hillary Hen", Maddie becomes furious; but when London is in trouble, it's up to a reluctant Maddie to save her.

Zack & Cody go on a double date at mini golf. Zack stinks at it, but his date is great. Soon, Zack tries to get help from Mr. Moseby, who was an expert at mini golf. Zack returns to the mini golf course and proceeds to beat everyone sorely. London joins a book club and Carey tries to live a healthier life.

A wheelchair basketball team is staying at the Tipton, giving Zack the opportunity to persuade his friend Jamie, now permanently using a wheelchair, to start playing the sport again. Maddie tries to make a film for her school project starring London and Lance.

Two television writers discover about the life of Zack & Cody, and sells a sitcom about the show, and everyone gets to go there to watch it. Although, when Zack and Cody's actors don't work out, Zack and Cody are offered to take their place.

Zack and Cody accept the offer to become the stars of the television show, although Cody gets stage fright and can't act, leading to a fight, so Carey gives them a timeout. During the timeout, some twins (guest stars The Veronicas) sing in front of the audience, and the writers fire Zack & Cody and hire them. Meanwhile, London and Maddie sneak onto a movie set to see a cute actor, and the director mistakes them for stunt doubles.

Note: The Veronicas perform their song "Cry" when asked to sing in front of the audience.

When London comes back from Peru, she brings back a lot of artifacts, including an ancient necklace and a mummy, which Esteban says is cursed. Zack and Cody want to see the mummy, so they sneak into the suite to see it, but accidentally push it out of the window. As a result, Zack disguises Cody as the mummy until Zack can get the real one. However, Maddie and Esteban feel the mummy should go back where it came from, so they dress up one of Maddie's old dolls to look like the mummy and switch with the one on display (which is really Cody). Eventually, they all find out the original mummy is a fake.

Cody searches for a summer job, and finds a "help wanted" sign at the local mini-mart. When the owner realizes Cody is friends with London, he will only hire Cody if he will set him up on a date with her. When Zack discovers he is the smartest student in his summer school class, all the other kids give him a hanging wedgie but in the end he tutors them too.

Title reference: The phrase "Now is the winter of our discontent," from Shakespeare's Richard III
Guest stars: Tara Lynne Barr as Haley, Adam Cagley as Brick, Jareb Dauplaise as Wayne Wormser, Mary Scheer as Mrs. Bird, Tyler Steelman as Mark, Kara Taitz as Millicent

Zack and Cody wish for superhero powers when they see a shooting star. Their wish comes true; Zack gets super speed, and Cody gets telekinesis and can read minds. They learn that Mr. Moseby is a super-villain, whose evil plot is to turn all kids into mini adults with the help of his minions, Arwin (the Engineer), Esteban (Bellboy), and London, who is hypnotized into giving her diamonds to Moseby. At the end, Zack realizes it was all a dream he had after eating three slices of cold pizza before bed.

Guest stars: Charlie Stewart as Bob

At the mini-mart, Cody does all the work but Zack gets all the credit. With the help of Arwin, Cody gets a machine to help him with his job. But when things go wrong, Cody gets fired, and Zack tries to help Cody get his job back. Meanwhile, London doesn't know how to present Lance to her friends, because Lance embarrasses her constantly.

A competing mini-mart issues a competition to see who can bag items faster. Meanwhile, Mr. Moseby's niece, Nia (Giovonnie Samuels), comes to the Tipton and works as the candy counter girl in Maddie's absence. Instead of preparing for the challenge, Zack and Cody are goofing off at a party with London and Nia.

Guest stars: Giovonnie Samuels as Nia

To impress Stacey (Meaghan Jette Martin), Cody tells her that she can have her birthday slumber party in London's hotel suite while she's in Scotland but, when London comes home early, Zack, Cody, and Nia must find a way to keep London out of the suite. Meanwhile, Carey is constantly pursued by a barbershop quartet named The Mellow Notes because she is so beautiful.

Guest star: Giovonnie Samuels as Nia, Meaghan Jette Martin as Stacey

Arwin couldn't fix things right because his mother re-married and moved out. When Zack and Cody invite Arwin over for dinner and stay over night, he won't seem to leave, because he doesn't want to be alone. Carey is getting annoyed at him so she forces Zack and Cody to make him go. Meanwhile, Lance dumps London and she wants to find a way to get back with him.

Guest stars: Samantha Droke as Wanda, Megan Hilty as Enid

London (even though she can't sing or dance) gets the role of Sharpay in their school production of High School Musical instead of Maddie because Mr. Tipton is financing the director's play "Floss" on Broadway. Zack has to work backstage for detention and Cody gets the part of Troy.

Title reference: Singin' in the Rain
Guest stars: Mitchell Whitfield as Mr. Blaine, Mark Indelicato as Antonio

It's the first day of high school for Zack and Cody. Zack finds a new crush, Amber, (Kay Panabaker). Cody saves Bob from Vance, the school bully, Nia gets in trouble for defending Zack, and Mark (from summer school) gets Cody's help to learn to be a geek. London attends public school for the first time (after being expelled again from Our Lady of Perpetual Sorrow), in which she is out to tear down lockers for her own personal lounge.

Guest stars: Kay Panabaker as Amber, Kathy Najimy as Ellen, Giovonnie Samuels as Nia

Zack tries to negotiate a better contract for Carey as the Tipton's nightly singer to Mr. Moseby so they could stay at the Tipton. After losing her science tutor, London asks and pays Cody to help her with her project. Nia also wants Cody's help and bribes him with concert tickets to Yo Yo Ma. Cody quits and London and Nia combine their machines, inventing a French Fry maker.

Guest stars: Giovonnie Samuels as Nia
Absent: Ashley Tisdale as Maddie Fitzpatrick

It's Halloween at the Tipton. When looking for Arwin, Zack and Cody accidentally release a robot Frankenstein monster (created by Arwin), who is almost an exact replica of Arwin. The employees think 'Arwinstein' is Arwin in his costume for Halloween. Meanwhile, London is hosting a Halloween party at the Tipton, which has a costume contest, and the winner gets diamonds. Arwinstein shows up at the party and becomes the winner of London's costume contest. Soon, Arwinstein kidnaps Carey and everyone finds out that Arwinstein is a monster.

Title reference: Frankenstein

Maddie returns and does not get along with Nia at all, while Esteban and Patrick are also fighting. Carey then gets into an argument with Patrick, after saying he was making noise during her performance. Meanwhile, when Zack causes some customers to leave, he and Cody schedule a bug convention at the Tipton to make it up to Mr. Moseby. However, due to his fear of bugs, Zack accidentally releases the bugs into the Tipton. Mr. Moseby make arrangements for a seminar to be held at the Tipton for himself, Arwin, Esteban, Patrick, Carey, Millicent, Maddie, London, and Nia to help them to learn to respect their co-workers.

Cody becomes jealous of the new violinist Sergay, a Russian professional. When Sergay starts to flirt with Barbara, the girl Cody likes, Cody becomes jealous and is determined to win her back. Meanwhile, London wants to learn the business of the Tipton hotel, so she shadows all the jobs in the Tipton including the bellboy and maid and causes chaos for the guests and all the employees. But when she goes for Mr. Moseby's job, she realizes all the nasty things the workers at the tipton have to say about her. Meanwhile, the orchestra has a performance at the Tipton and Cody desperately tries to win Barbara back.

Note: This episode was part of Disney Channel's November 2007 "Night of Premieres".

Zack and Cody each invite a girl over at their dad's empty apartment at the same time without the other knowing it. Meanwhile, London teaches Esteban how to act rich because his family inherits the throne to his country, but ends up ruining everything for Esteban and when a military coup d'etat has overthrown Esteban's royal family, all his luxury items are subject to repossession, forcing Esteban to go back to his old job as a bellhop.

Absent: Ashley Tisdale as Maddie Fitzpatrick

Cody helps London with her website Yay Me! Starring London Tipton and produces a video on her site. Zack gets addicted to Medieval Magic Quest, an online game. Mr. Moseby is playing the game too, so they become friends online. Cody is tired of all the things London makes him do (wearing high heels, etc.), so he quits. London's site then starts to get less viewers and she apologizes to Cody, inviting him back to be the producer. Meanwhile, Zack and Mr. Moseby discover each others identity in the game and they later try to quit because the game proves to be addictive.

Guest star: Brittany Curran as Chelsea Brimmer

Tony Hawk checks into the Tipton; Maddie and London each have a crush on their fencing instructor. While Zack and Cody are doing their science project, the problem is that Cody has a fear of germs, and when Zack makes a mistake when analyzing a germ from the kitchen and thinks it's a toxic type of black mold, the rumor spreads through the hotel and everyone starts panicking. Cody gets over his fear after he realizes that he can't go skateboarding with Tony Hawk wearing an anti-germs suit.

Zack and Cody befriend Travis, a kid whom they rope into helping them impress their dates because his dad works on a cruise ship. They then bail on Travis and go out with their dates, but lets Travis go with the girls instead. Maddie finds a stranger's phone whom she thinks is her crush (because she and the stranger have many of the same interests, which she found out on the lost phone). At the end, the owner of the phone was an old man, but Maddie takes an interest in the old man's grandson named Geoffey.

Guest stars: Jaden Smith as Travis, Drew Seeley as Geoffrey, William Schallert as David

Zack tries out for the high school basketball team but realizes there's some stiff competition, the kind he didn't face in middle school, and worse yet, the giant, in-your-face Coach Little (Michael Clarke Duncan). Meanwhile, when they're rejected as cheerleaders, Cody and London form their own cheer-leading squad with the help of Mr. Moseby, who ends up doing a jumping cheer and landing right into the arms of a gruff Coach Little.

Guest stars: Sophie Tamiko Oda as Barbera, Giovonnie Samuels as Nia, Kaycee Stroh as Leslie, Tara Lynne Barr as Haley, Camilla and Rebecca Rosso as Janice and Jessica Ellis, Daniella Monet as Dana, Michael Clarke Duncan as Coach Little

When Zack and Cody are grounded and forbidden to leave their suite, Maddie steps in for Cody as the producer of London's Internet show. In order to win the Golden Netty award, Cody sneaks out and gets The Cheetah Girls as guest stars for London's show but is surprised when he finds out that Maddie has already booked Chris Brown as a guest star. In the end Carey finds out and goes on a rampage against the blatant disobedience of her sons, scaring Chris, the Cheetah Girls, and the live audience, and grounds Zack and Cody in rage. It ends up that Maddie and Cody both win the Golden Netty and Zack and Cody's mother was the top download of the week.

Zack and Cody offer to bring their mother on a week-long vacation to the S.S. Tipton, staying in the King Neptune Suite, which overjoys Carey. However, they neglect to tell her that the only way they could afford the vacation is for Carey to be the cruise ship's singer, although Carey soon finds this out herself. Since Carey does not want to work during her vacation, she offers to pay for her room herself, although the only room she can afford is the "Sardine Suite" (storage room). Annoyed by the few privileges she has from this, she finally agrees to sing, although she falls asleep in the sun and gets a sunburn, no longer able to perform. Zack and Cody then perform in her place, stating that because their mother has made so many sacrifices for them, it is time they made a sacrifice for her. When the uppity cruise director says this is not authorized, the audience applauds Zack and Cody and says they put on a great show. Meanwhile at Boston, London is hosting a 24-hour telethon during her "Yay Me!" broadcast, while raising money for the homeless/hungry through phone pledges. However, a blizzard occurs, which prevents any of London's guests for her broadcast to get to the hotel (since the roads have all been closed). Therefore, they are forced to improvise, which include Mr. Moseby jumping through a hoop like a dog, Maddie and London performing a ventriloquist act, and London spinning plates. However, they soon realize that their internet connection has been lost for over twenty three hours and that all their performances had been for nothing. Instead, they decide to give the left-over food from the Tipton to the food shelter once or twice a week.

Note: The same cruise set (the S.S. Tipton) is used in The Suite Life on Deck. The cityscape background seen throughout the episode is that of the Miami skyline.

In the series finale, the news of a visit from Mr. Tipton gets the employees excited (and reminiscing) about their good deeds as to who deserves a possible bonus (a $50,000 bonus)… but when Mr. Tipton's helicopter lands on the roof with his welcome cake, he throws his cake on Arwin's face, which means he is in a bad mood and will fire someone. All fingers point to Carey because of the boys' mishaps, but Zack & Cody come up with a plan to get someone who doesn't work at the hotel fired.

Notes: This is the last episode of The Suite Life of Zack & Cody, before the premiere of The Suite Life on Deck. This is a flashback episode and aired during "The Suite Life and Times of London Tipton" marathon.