Line of Duty - Season 1

After a fatal mistaken shooting during a counter-terrorist operation, DS Steve Arnott is transferred to a police anti-corruption unit. Working with a team of elite detectives, he is tasked with investigating corruption from within the force, where the people meant to uphold the law may also be the ones breaking it. Season 1 follows the unit as Arnott adjusts to a new role built on suspicion, pressure and difficult loyalties.