Justice League Unlimited
Season 1, Episode 7: The Greatest Story Never Told
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The Justice League battle Mordru in the background, while the narrative follows Booster Gold as he attempts to close a walking black hole while he's supposed to be on "crowd control".
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