When the legendary hero Barry Allen is killed in the line of duty, his rebellious and directionless nephew, Wally West, is struck by lightning and inherits the powers of the Speed Force. Forced to transition from a reckless thrill-seeker to a symbol of hope, Wally must master his new abilities to stop a vengeful criminal genius and a psychotic "Reverse-Flash" determined to erase his uncle’s legacy and tear the world apart