Zack becomes attracted to a girl named Maya, but when he realizes he is actually falling in love with her, he attempts to use the six month plan Cody devised to date Bailey. Meanwhile, Dante, the boy who stole Marcus's identity in Paris, stows away on board to have Marcus produce his next album. In addition, Cody is trying to condition himself to forget about Bailey by flicking a rubber band against his wrist every time he thinks about her while she is visiting her home in Kettlecorn.

Zack, London, Woody, and Maya are all trapped in London's shoe submarine with only enough air for thirty minutes. Meanwhile, Marcus helps Cody prepare to play chess against a beautiful Russian junior champion.

Maya's birthday is coming up and Zack decides to do something special for her. When singer Sean Kingston comes on board, he immediately becomes attracted to London. Zack misleads Sean Kingston into throwing a surprise party for London and also making Mr. Moseby believe it is for him, when it is actually a party for Maya. Meanwhile, Cody goes with Bailey to a Belgian chocolate factory on a couple's tour and runs into Woody who mistakenly came instead of attending a hiking trip.

Zack and Maya are officially together and she hopes he'll be able to attend her poetry reading on stage. The trouble is it's scheduled at the same time he, Cody, Woody, and Mr. Moseby are competing in an online war game for the championship against an Australian team. As a result, Zack splits his time between the two events. Meanwhile, for a community service project, London and Bailey run a daycare program for young children who seem to prefer London and Bailey doubts herself until trouble arises.

It's couples game night and the gang has a hard time finding a fun game everyone finds interesting. London tries to play a prank on Woody and it results in the release of a crate full of snakes. Meanwhile, Cody tries to prove he can be funny to Bailey and Zack tries to get forgiven by Maya when she learns how many girls he has dated.

After the students pull a prank on Mr. Moseby, he cancels the senior prom. So, Zack comes up with a plan to have a "secret prom". Meanwhile, Bailey tries to get everybody to vote her for prom queen while Cody helps Woody ask Addison to prom. Ultimately, the kids award the roles of king and queen to Mr. Moseby and Ms. Tutweiller.

Mr. Moseby announces that London's dad, Mr. Tipton is selling the ship and that it will be dismantled within a week.