Phineas and Ferb (and a Lot of Other People): Across the 616th Dimension

Across the 616th Dimension is an alternative ending to Across the 2nd Dimension where Phineas, Ferb, and the gang don't get mind-wiped. Instead, Monogram's agent tracker sattelite goes off. It says they found 2 agents... a spider and a wolverine, but they're in another dimension. So Monogram, Perry, Doof, Phineas, Ferb, and the gang as well as their 2D versions go to find them. It turns out that the agent recruits are the legendary Spider- Man and Wolverine and the gang are in for the best fight of their life