Just a few days after it was revealed that Phineas and Ferb will air a Shaun of the Dead-themed episode with Simon Pegg and Nick Frost voicing Shaun and Ed, the series has set a September 29 premiere date for its Lost-themed episode "Lost in Danville".

Lost co-creator Damon Lindelof wrote the episode, with Terry O'Quinn, who played Locke on the hit ABC series, voicing Professor Mystery, who is hatching a sinister plan. The episode centers on a mysterious locked capsule falling from the sky and landing in Phineas (Vincent Martella) and Ferb's (Thomas Brodie-Sangster) backyard. As the duo struggle to open this mysterious device, they learn an evil force has been unleashed.

The story also follows Perry the Platypus (Dee Bradley Baker), who learns that Dr. Heinz Doofenshmirtz (Dan Povenmire) has been abducted, tracking him all the way to Seattle where he encounters Professor Mystery. Jane Kaczmarek and Rob Morrow will also provide the voices of the capsule's inhabitants, Denise and Bernie.

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