Justice League Unlimited
Season 1, Episode 3: Kid Stuff
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Morgaine Le Fey transforms Superman, Batman, Wonder Woman, and Green Lantern into children after Mordred uses his magic to remove all adults from Earth and keep children on the Earth.
All Episodes - Season 1
Episode 1
Initiation
Episode 2
For the Man Who Has Everything
Episode 3
Kid Stuff
Episode 4
Hawk and Dove
Episode 5
This Little Piggy
Episode 6
Fearful Symmetry
Episode 7
The Greatest Story Never Told
Episode 8
The Return
Episode 9
Ultimatum
Episode 10
Dark Heart
Episode 11
Wake the Dead
Episode 12
The Once and Future Thing (1): Weird Western Tales
Episode 13
The Once and Future Thing (2): Time, Warped