Snapped: Killer Couples (2013)

S04E36 The Return of the Rogue Rabbit

Doofenshmirtz teams up with Dennis the Bunny, a runaway OWCA agent, to break out of prison. At the same time, Phineas and Ferb decide to enhance the marionette show put on by the Fireside Girls, adding their own creative twists to make it even better.