Line of Duty

After the deadly hijack of a police convoy, AC-12 goes after a ruthless organized crime syndicate linked to corrupt officers.

While Steve and Kate trace a new lead, a fresh leak enables another daring raid. A high-ranking officer's connection to the crime ring is revealed.

As AC-12 closes in on H, Corbett hatches an audacious plan that requires McQueen to get entangled with corrupt police officers.

While questions hang over the mastermind's identity, doubts boil over AC-12. What answers lie in Ted's connections in Northern Ireland?

As the search for the enigmatic H intensifies, Steve and Kate wonder what Hastings is hiding. Plus, DNA evidence unearths new suspicions.

As Hastings sweats through a relentless interrogation, a secret recording is uncovered and the information leads to a shocking revelation.