Nightwing: The Darkest Knight 2015

Nightwing returns home after a brief stint as the Green Lantern to find a close friend of his murdered. On the hunt for answers and justice, Nightwing steps beyond his normal boundaries of control until he is finally forced to the confront the person responsible for the horrific crime. Torn between loyalty and justice, Nightwing is forced into a fight he would never want to have, but is forced to in order to save his city.