The heart has its reasons, when reason itself knows nothing. Zack and Cody both learn this when Cody is hospitalized after having a mental crisis and begins to question sanity itself, and Zack has to come to terms with how his life has changed.

What happens when the Ship docks in Southampton and the teens find themselves stranded in a creepy castle? The Twins have to battle ghostly goings on, vengeful spooks and a ghost who has its sights set on one of the group.