The new series finds London Tipton (Brenda Song), Zack Martin and Cody Martin (Dylan and Cole Sprouse) aboard the SS Tipton, a luxury passenger cruise liner. The cruise liner is owned by London's father. Mr. Tipton is never fully seen in the show. The ship cruises the world with tourists and students who attend classes at Seven Seas High, the one high school that London's dad thinks will make his daughter a better student. Also coming along is Mr. Moseby (Phill Lewis). London learns to live a "fabu-less" lifestyle, including giving up her large closet and having sharing a small room with Bailey Pickett (Debby Ryan) a country girl from Kansas. While out at sea, Zack and Cody get into mischief and make friends with Woody.