The series centers on twin siblings Zack and Cody Martin, along with hotel heiress London Tipton, as they embark on a new adventure aboard the SS Tipton. Here, they attend “Seven Seas High” and befriend Bailey Pickett, all while Mr. Moseby oversees the ship’s operations. As the vessel journeys across the globe, visiting countries like Italy, Greece, India, Sweden, and the United Kingdom, the characters immerse themselves in diverse cultures, embark on adventures, and encounter various situations.