The Dark Knight (voice of Jason O'Mara) discovers that he has a son with Talia al Ghul (voice of Morena Baccarin), and that the young boy is driven by the same fiery vengeance as his crime-fighting father in this adaptation of the 2006 comic book arc by Grant Morrison. Trained as a young boy by the League of Assassins, Batman and Talia's son Damian (voice of Stuart Allan) grows convinced that his grandfather Ra's al Ghul was killed by the villainous Deathstroke (voice of Thomas Gibson). Donning Robin's suit, Damian sets out in search of violent retribution.