Damian Wayne is the son of Bruce Wayne and Talia al Ghul. Damian was raised as an assassin. He was raised to kill and to kill Batman. He is portrayed by Asa Butterfield in Untitled Batman Film.
After the Great War of Gotham, the GCPD went around to find the injured and dead. Lt. James Gordon found the body of Talia al Ghul or as he knew her Miranda Tate. Gordon was not sure if she was dead or alive but one thing was for sure. She was five months pregnant. When Gordon brought a doctor back, the body was gone. Taken away by the League of Shadows. Damian somehow survived and was trained from a young age to fight, to kill. He was taught to kill the Batman. When Damian was nine years old. They decided he was ready to fullfill Ra's al Ghul's destiny. They sent him to Gotham, where he waged his own war on crime. Except different from others, Damian wouldn't spare his victims. When Nightwing heard about Damian's arrival he found him. Instead of taking him down, he offered a hand. The one who wore his father's armor, the one he had been trained to kill, accepted him. Damian was trained by Nightwing and joined Cassie, Stephanie and Tim as well. He took the name that Nightwing was once known by, and Tim. He became Robin.