Line of Duty

20126 series
Available on
BBC One

After refusing to help cover up an unlawful and fatal shooting by members of his team, Detective Sergeant Steve Arnott is transferred to Anti-Corruption Unit 12, AC-12. Run by zealous Superintendent Ted Hastings, the department is responsible for investigating possible corruption within the Central Police force. Working alongside DS Arnott is Detective Inspector Kate Fleming, who is an undercover specialist. With the help and oversight of Hastings, Arnott and Fleming take on difficult cases, which lead from "laddering" to mishandling evidence.

Monster: Episode Image
Episode 1Monster

Episode 1. Sergeant Danny Waldron and his armed response team shoot dead a hardened criminal. Contains some upsetting scenes.

Episode 2: Episode Image
Episode 2Episode 2

After the shooting at the drugs house, DC Fleming increases the pressure on Danny Waldron. Contains some upsetting scenes.

Snake Pit: Episode Image
Episode 3Snake Pit

Episode 3. DS Steve Arnott believes there is a dark secret in Danny Waldron's past. Contains upsetting scenes.

Negative Pressure: Episode Image
Episode 4Negative Pressure

Episode 4. Fresh testimony launches AC-12 back on the trail of a corrupt officer. Contains upsetting scenes.

The List: Episode Image
Episode 5The List

Episode 5. Loyalties are divided when DS Steve Arnott comes under scrutiny from his colleagues. Contains upsetting scenes.

Breach: Episode Image
Episode 6Breach

Episode 6. Does DC Kate Fleming's undercover operation hold the key to the identity of the Caddy? Contains upsetting scenes.

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