Since the first appearance of Robin, teenaged heroes have banded together to fight evil and learn from each other...as the Teen Titans! When Cyborg is attacked in the Teen Titans' base, they realize one of their number is a traitor...but nobody knows who the traitor is! When finally revealed, the tables are turned on the aggressor, as the psychotic Vigilante is aiming to deliver final justice! Will the Teen Titans stand together to defend one of their own, if one of their own has already turned on them? Writers Sean McKeever ( Sentinel ) and Marv Wolfman ( Crisis on Infinite Earths ), along with a host of top artists, present this nail-biting tale of vengeance!