Foster's Home for Imaginary Friends S4 · EP1
Challenge of the Superfriends
7.8 · 2004 · Kids,Animation,Family,Sci-Fi & Fantasy,Comedy · ~23m
When a large and dangerous imaginary friend is destroying the city, a superhero friend named Imaginary Man comes and saves the day, leaving Mac impressed. But once Mac becomes Imaginary Man's sidekick, Bloo becomes jealous and joins forces with Nemesis, Imaginary Man's mortal enemy and sister.
