Content guide
Usually fine — about 6+
Phineas and Ferb S3 E58, “When Worlds Collide”, scores 1/5 for violence, 1/5 for sex and 1/5 for language, for an overall kid-rating of 1/5 — Usually fine — about 6+. 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.
We found no flagged adult themes in this episode. Every moment below is either a direct quote from the episode transcript or a short description of what happens on screen, so you can decide before you press play.
Parents need to know
Age 6+Mostly mild kids animation.
Parents need to know that Phineas and Ferb S3 E58, "When Worlds Collide", is a kids animation episode. Our transcript scan didn't flag adult themes in this one — it's one of the milder entries in the series.
Watch for — every moment, theme by theme
No watch-for themes were flagged in this episode — nothing adult stood out in the transcript.
Watch With The Kids · Your kids — your rules! · Informal parent guidance, not an official rating.