Mark Grayson is a normal teenager except for the fact that his father is the most powerful superhero on the planet. Shortly after his seventeenth birthday, Mark begins to develop powers of his own and enters into his father’s tutelage.
Teenage superheroes strive to prove themselves as members of the Justice League.
Harley Quinn has finally broken things off once and for all with the Joker. Now, she's trying to make it on her own as the criminal Queenpin of Gotham City, with help from Poison Ivy and a ragtag crew of DC castoffs.
