Phineas and Ferb: Mission Marvel will be a special Season 4 episode of Phineas and Ferb and serve as an animated crossover between Disney and Marvel that will premiere in the summer of 2013.
Spider-Man, Iron Man, Thor and Hulk enter Danville after Dr. Doofenshmirtz's latest "inator" scheme accidentally removes their powers and immobilizes them. Now it's up to Phineas and Ferb to team up with the Marvel Super Heroes to help them regain their powers and defeat Marvel Super Villains – Red Skull, Whiplash, Venom and M.O.D.O.K. – who are working together with Dr. Doofenshmirtz to use his power-draining technology to create mayhem.
Preview of Phineas and Ferb: Mission Marvel
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