http://www.imdb.com/title/tt0385690/
The maniacal baby of the Griffin family, Stewie, meets his future self. In doing this he discovers that his future image is not what he has anticipated because of a near death experience.

http://www.megavideo.com/?d=7WIFGGPL
or
http://www.megavideo.com/?d=4T9Y74MP
or
http://filebase.to/files/969882/Family20Gu...0Story.2005.avi


*NOTE: I didn't post this in family/animated/kids section because I don't think Family Guy (or the Simpsons for that matter) are for the little kiddies. It's definitely adult..