Justin is excited to meet London Tipton when he wins an essay contest prize: a cruise on the SS Tipton. Theresa and Jerry say Alex can't go because of her 14 absent assignments. Alex (who eventually sneaks away, but is caught and agrees to take classes on board) and Max join Justin on board, where Alex bonds with new friend Bailey Pickett. When Alex and Bailey enter a tug of war competition, she tells Bailey to spit on the floor so they win. They end up winning the competition and Hannah Montana tickets to her concert. When Marion Moseby asks for Alex's name since she and Bailey won, she says she is Ashley Olsen. But soon gets in hot water when she uses magic to bring Harper aboard and tells her she is signed up for Marine Biology, where she meets Cody Martin and tells him she's Alex Russo. Justin meets London Tipton while on the cruise and when she asks who he is, Justin says he is Dr. Fossil to not look like a fool. Meanwhile, Max and Zack Martin, (who has developed a massive crush on Alex), compete in a series of outrageous challenges. Alex says that she is Ashley Olsen so she won't get caught skipping classes. But gets caught after mistaking her name and telling Mr. Moseby that her real name is Ashley Simpson. In the 2nd episode, Double Crossed, when Alex gets sick of Justin's attitude, she puts blue dye in the hot tub to prank him. At the end of the episode, Alex is caught when Justin pours water on her hand. When it turns blue, Alex gets exposed and must not do any more pranks while on the cruise.