Line of Duty

After a criminal is shot dead during a police raid, AC-12 begins gathering evidence against Sergeant Danny Waldron, but it may be hard to get any information out of Danny’s tight-knit unit.

As the evidence mounts against them, Danny’s squad members close ranks. Then DS Arnott makes a shocking discovery that could change the focus of AC-12’s inquiries.

Arnott digs deeper into Danny’s past to try to make sense of his actions. Meanwhile, Kate continues her undercover investigation into Danny’s unit.

Lindsay Denton sets out to clear her name, while Arnott and Hastings interrogate Bains on suspicion of murder.

When Arnott’s inquiries lead him to be suspended, he must team up with an unlikely partner to open his colleagues’ eyes to the possible corruption within their own department.

AC-12 interrogates Fairbanks about possible sexual abuse at Sands View, but a procedural glitch may interfere with the investigation.