Phineas & Ferb - When Worlds Collide

Seizoen: 3 - Aflevering: 58 / 172 - Eerst uitgezonden: 14 september 2012 - Episode ID: 660041

After discovering that a strange planet is hurtling directly towards Danville, Phineas and Ferb set out to avert a disaster, while Buford looks forward to making contact with its alien race. Meanwhile, Dr. Doofenshmirtz hopes to steal the world's largest ball of twine.