Synopsis

Candace discovers a rabbit and immediately decides she wants him as a pet. Unbeknownst to her, however, the creature is a rogue agent on a mission: to locate Perry the Platypus's secret headquarters for vital information. Elsewhere, Phineas and Ferb embark on the construction of x-ray glasses. With Perry absent to thwart his latest scheme, Doofenshmirtz finds himself unexpectedly challenged by a new adversary.