1. Challenge of the Superfriends
Aired: Apr 28, 2006When a large, dangerous imaginary friend begins to destroy the city, Imaginar...
The gang arrives at Mac's apartment for an unplanned slumber party on a school night, and Mac tries to keep them quiet so that they won't wake his mom.
Current Status: Ended
Network: Cartoon Network
Production Countries: Canada, United States
Foster's Home for Imaginary Friends: Where to Watch Online?
It is also possible to rent or buy on Amazon, AppleTV, Google Play, YouTube online.