The Flash (2014): Season 1, Episode 1

1 - 1: Pilot

Forensic scientist Barry Allen is struck by lightning and doused in chemical products that afford him superhuman speed, which he learns to control with help from Tina McGee, a scientist from S.T.A.R. Labs. When Barry's brother, policeman Jay Allen, is murdered by his corrupt ex-partner, Nicholas Pike, the leader of a vicious gang of criminals, Barry uses his newfound abilities to bring Pike and his men to justice and decides to continue protecting Central City as "The Flash".