Phineas and Ferb the Movie: Across the 2nd Dimension

At Platypus named Perry, like other inhabitants of the planet, have their personal fears, from which he was not under force to eliminate. Once the day comes when the most terrible nightmare hero is being translated into reality. Phineas and Ferb to receive information about what their pet is actually a secret agent, working undercover. They never had to learn about the identity of a secret agent Pee turned out to be disclosed. Such circumstances are not ready.

But it was still not the worst. Ahead of the main character of the cartoon "Phineas and Ferb the Movie: Across the 2nd Dimension" and his pals is waiting for an incredible Adventure. The company will have to go on an unusual trip to the second dimension. Also on the way heroes will meet the insidious doctor.
Phineas and Ferb get trapped in an alternate dimension where the evil Doofenshmirtz rules the tri-state area. They must find a way back home with the help of their pet platypus named Perry, who they discover is a secret agent.