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 extracted on them by their victims.

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 archrival to the prom and when Alex attempts to console her, it leads to a possible shipboard romance between the two.

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 Rome, Ashely believes she's dating Prince Stephan of Spellbourg but she's really dating his chauffeur/pool guy. In reality it is Cassidy who's dating the real royalty.

Sean and Jimmy once again 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 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 realizes Breaker High is where she belongs and that her friends need her.

Sean and Jimmy help Lena stow away on the boat and argue over who she loves more. Unfortunately for them all Lena wants is to go to America and become a Wheel of Fortune girl.

In Florida, Denise, Tamira, Jimmy and Sean discover a toxic waste dump in the Everglades. Ashley and Cassidy spoil each other's chances on landing a spot in a Miami Goddess suntan lotion commercial because of their jealousy and rivalry.

On the boat, Sean gets paranoid as they near the Bermuda Triangle and thinks that Captain Ballard is an alien. Ashley plagerizes one of Tamira's poems and Tamira catches her.

On the boat, Tamira is conned for love by a Chilean poetry-reciting jerk and dismisses Sean's tales about the guy as jealousy. Jimmy becomes a Chilean and Ashley pawns her tiara for a set of fly fishing bait for Alex, who in return pawns his fishing pole for a tiara box for Ashley.

In Jamaica, Denise finally has a port fling with a guy named Hugo who she cuts class for in order to spend time with him. Alex learns about the Jamaican way. Jimmy believes he's been poisoned when he mistakenly thinks he ate a harmful Jamaican soapberry instead of a harmeless Martinique plum.

On the boat, Sean stands up for himself and the nerds of the ship when a tough guy called the House mocks the nerds and himself.Alex is green with envy when his his soccor star brother Lyle visits.

On the boat, Jimmy gets conked on the head and believes he is Sean Hanlon. The real Sean thinks it's cool at first until Jimmy goes out with Nicolette, the girl Sean's been crushing on for weeks.

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 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.

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.

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 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 Derk, her instructor, and Max comes to her rescue. Sean turns Ashley's chalet into Party Central.

In New York, Max catches Cassidy cheating on him and runs away from the ship. Sean pretends he's Mr. Big Shot City Guy who knows everything. Denise takes Jimmy out to lunch with her and her family and a Harvard recruiter.

In Costa Rica, Jimmy has a romantic fling with Yvette, a beautiful student on a butterfly field study and Alex attempts to be romantic with Ashley with disappointing results.

In Greece, Denise and Tamira go biking on a country route but their bikes get stolen. After wandering around awhile 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.

In Turkey, Jimmy ""Budall"" Farrell whoops it up belly-dancing. Sean and Ashley get swindled by a rug-selling charleton but are able to get revenge. Max tries to get Denise to loosen up and have fun.

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.

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 he thinks she's hot. Jimmy saves the day with his emergency food stash.

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.