Phineas, Ferb & the gang meets Timmy, Wanda, Cosmo, Poof, Sparky & their friends! Meanwhile, Brendan teams up with Denzel Crocker, Foop, Vicky, Dark Laser, Anti-Wanda, Anti-Cosmo & other villains to destroy Dimsdale! However, Brendan is planning to drain the fairy's magic to become a powerful evil fairy! Now, Phineas, Ferb & the gang must team up with Timmy, Wanda, Cosmo, Poof and Sparky and save Dimsdale from the villains! Plus, Adam's shocking secret is revealed: Cosmo & Wanda is his long-lost Fairly Godparents!