Once Batman's Robin, Jason Todd has taken the identity of the Arkham Knight. He is actively trying to get his revenge on the Bat, and his rage clouds his judgement most of the time. But, after realizing that his weapon had just been aimed at a rather familiar face, the homeless kid he had been back then replaces the Knight momentarily. His revenge has always been a priority, but he was also a brother at some point, and he was never really able to forget that.