Woody's sister Willa comes to visit the S.S. Tipton, and while Woody is stuck doing homework, Cody offers to show her around.
It's Senior Ditch Day, and Zack, London and Woody try to get in a very exclusive club. Cody and Bailey go to class. Miss Tutweiller wants to finish her romance novel, so she gives them an assignment to 'have fun'.
Cody visits a remote scientific research station in Antarctica, and Zack and Woody tag along to go snowmobiling.