In Japan, Max and Tamira bond over a Japanese Tea Ceremony. Cassidy, Ashley and Denise go to the Lotus Blossom Retreat, which they believe to be a spa but is really a Buddhist monastery. Sean, Jimmy and Alex plan to stay at the boring fishing village but they end up having a great time in the city with their hosts.
On the boat, Jimmy and Cassidy battle it out with a huge prank war and cause each other to dive into paranoia. This results in them joining forces and turning their pranks on the other students but Jimmy and Cassidy do not get the last laugh when revenge is exacted on them by their victims.
In Hong Kong, Sean and Jimmy blackmail Max when they catch him buying illegal fireworks. After discovering Nigel's plan to kill and cook a duck, Denise and Alex attempt to free the bird. Ashley spies Tamira and Cassidy sneaking out to go dancing at a club.
In India, Sean and Jimmy ride their egos when the attempt to outdo one another in everything, including eating chili peppers and walking on hot coals. Ashley discovers that her hometown boyfriend, Tyler, is escorting her arch rival to the prom. When Alex attempts to console her, it leads to a possible shipboard romance between the two.
In Kenya, Cassidy and Ashley flirt with their guides, Kip and Marcus. Sean and Jimmy believe they can get a little slumber party action if they follow the girls on their photo safari but instead find themselves a little too up close and personal with a lion. Denise proves that women can be warriors and Alex learns that there's more to life than football and machines, when he tries to be a Masai warrior.
In Egypt, Cassidy and Max get separated from their group in one of the pyramids and they bond, leading to a kiss between the two. Sean loses all his clothes to a sneaky card-playing kid and Jimmy must bail him out by playing Go Fish. Denise and Tamira come to the conclusion that Ashley is not just a stuck up princess.
On the boat, Tamira confides in Sean that she must leave Breaker High due to financial reasons. Feeling he must help, he throws a The Brady Bunch (1969) Night to raise money for Tamira. Unfortunately, that theme night fails, but Sean is more successful when he throws a Gilligan's Island (1964) Night. After the party, Sean gives Tamira the money raised and she's able to stay at the school with no one the wiser and her dignity intact.
In Greece, Denise and Tamira go biking on a country route but their bikes get stolen. After wandering around for a while, they end up at a Greek party where Denise meets a cool guy. Sean and Jimmy go to what they believe to be a nude beach but is really a no swimming beach that's teeming with stinging jellyfish as Jimmy soon finds out.
On the boat, Alex and Max have a falling out and Jimmy jumps at the chance to move in with Max, who he hopes will become his best friends. This causes tension between Jimmy and Sean, who feels left out and abandoned by his own best friend. Cassidy sets up Tamira on her first date.
In France, Sean craves wine and sets out to find some. Ashley's mother arrives and threatens to remove Ashley from Breaker High. Jimmy falls in love with Monette, the daughter of a French winemaker. When Jimmy breaks their wine presser, Sean saves the day by encouraging his friends and the whole village to stomp the grapes. Cassidy injures herself when she falls off her bike and Max is blamed.
On the boat, Tony quits for the third time and is replaced by a horrendously evil drill sergeant. Denise enlists the gang to rid the boat of this so-called activities coordinator and to bring back Tony.
In France, Tamira gives up on the chance of her and Max together when she comes to the conclusion that he's happy with Cassidy. Nigel must teach the kids to cook to gain his medal. Sean helps a musician that he loves get back on his feet.
On the boat, Sean and Jimmy resort to numerous promises to various students in order to get the necessary ingredients for Sean's Chicago-style deep-dish pepperoni pizza. Cassidy and Tamira argue continuously.
Ashley mistakenly believes Jimmy is her cousin and is thoroughly relieved when the truth is revealed. Alex and Max fall victim to a video game addiction that Denise must remedy. Sean attempts the role of peacemaker between Tamira and Cassidy.
In Scotland, Alex refuses to don a kilt so Ashley ditches him for a Scottish guy but Alex soon gets over his embarrassment, much to the delight of Ashley. Jimmy is mistaken for the baby Nessie at Loch Ness and Sean is quick to capitalise on the situation.
Sean and Jimmy cause another international incident, this time in Rome, which involves the supermodel Paprika and impersonating Macaulay Culkin and the heir to the Chef Boyardee fortune. Tamira gets to meet world modelling sensation Apollo.
In Spain, Max falls for a gypsy girl. Tamira acquires the ability to tell the future and predicts that Sean and Jimmy will be chased. This stops them from running with the bulls but unfortunately the prediction still comes true when the gypsy girl's brothers chase them.
As the ship heads into a storm, Ashley and Alex bond, as do Max and his father, Captain Ballard. Sean reveals that he's never kissed a girl and Jimmy tells Cassidy that he thinks she's hot. Jimmy saves the day with his emergency food stash.
In England, Denise, Cassidy, Tamira and Ashley enter the Brit Talent Search as the Pepper Girls, with Sean as their manager. When Denise gets laryngitis, Jimmy stalls by rapping and ends up winning the competition as Hungry J. Jimmy goes on a blind date with his secret admirer thanks to Max and Alex.
In England, Jimmy and Sean get into their fifth international incident which leads to them being confined to the ship. They still manage to visit Buckingham Palace thanks to some nuns but yet again they get into trouble when they tempt a palace guard with a Yoo Hoo chocolate drink which leads to Jimmy having to impersonate a palace guard. Denise meets up with former rival, Alvin Fink in an Oxford competition and appreciates Tamira for her contributions.
On the boat, Jimmy gets conked on the head and becomes convinced that he is Sean Hanlon. The real Sean thinks that it's cool at first until Jimmy goes out with Nicolette, the girl that Sean's been crushing on for weeks.
On the boat, Tamira transforms herself in an attempt to get Price to like her until she realises that he's not as great as she thought. The gang try to run Late Night Bites in order to compensate for kitchen closure and the Jimmy Wrap is born.
In Switzerland, Ashley goes nuts when she suspects Alex is cheating on her with a french tourist named Dominique. Cassidy is almost killed in a snowboarding incident, no thanks to Dirk, her instructor, and Max comes to her rescue. Sean turns Ashley's chalet into Party Central.
In Amsterdam, Denise ponders the idea of returning home while touring the city and videotaping a letter to her parents. Thanks to Sean and Jimmy, and Cassidy and Ashley, she realises that Breaker High is where she belongs and that her friends need her.
In Norway, Jimmy eavesdrops on Cassidy and Denise and mistakenly believes that Denise is crushing on Sean. Ashley's hometown boyfriend, Tyler shows up which infuriates Alex when he becomes her second man.
On the boat, Sean discovers that he's falling for Tamira, just as she's crushing on another guy. Meanwhile, in her attempt to win that other guy, Tamira realises that Sean's the one that she really wants.
On the boat, Max spies Cassidy and Alex kissing, causing Max to retaliate by kissing Tamira. Sean tries to teach Tamira to dance but she's torn over her relationship with Sean and her attraction to Max.
In New York, Max catches Cassidy cheating on him and runs away from the ship. Sean pretends that he is Mr. Big Shot City Guy who knows everything. Denise takes Jimmy out to lunch with her and her family and a Harvard recruiter.
On the boat, Alex thinks Ashley's cheating on him with Max, when Max is innocently painting Ashley's portrait as a present for Alex. Sean announces that he's over Tamira and decides to hold a Seandezvous. However, when a boy named Brent asks out Tamira, Sean panics and asks out a girl named Kerry. Brent and Kerry ditch their dates for each other, leaving Tamira and Sean together wallowing in their own grief.