Synopsis

A brief voyage onto the open sea turns unexpectedly perilous when a storm leaves the family marooned on a deserted island. To occupy themselves, Phineas, Ferb, and Isabella construct a series of treehouses equipped with remarkably modern amenities, much to Candace’s frustration as she yearns to return home for Jeremy's party. Separately, Perry the Platypus, left behind, must evade the persistent attention of Baljeet and Buford in order to pursue his mission: thwarting Dr. Doofenshmirtz's latest