Phineas and Ferb Season 3 Episode 58: When Worlds Collide
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.
Aired 2012-09-14 · 11 min
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