Line of Duty: Season 1

After a man is mistakenly shot during a counter-terrorist operation, Steve Arnott, who refuses to cover up the death, is transferred to a police anti-corruption unit. There, he finds that his target is the city's top detective, Tony Gates.

Having been duped into covering up Jackie's hit and run, Gates is desperate to sever ties with her. But as Arnott and Fleming close in on his secret, Gates is plunged into an even more dangerous situation.

Arnott is convinced Gates played a part in Jackie's disappearance. With Fleming's help, the anti-corruption team tries to trap Gates into revealing his involvement in covering up Jackie's crimes.

Desperate for proof of Gates's corruption, Fleming pushes her relationship with him to the limit. But her behavior causes Morton to question if she might not be such a loyal colleague after all.

With Gates on the run, Fleming and Hastings go all out to catch him, leading to a shattering conclusion.