Enquêtes internes

AC-12 turn their spotlight on DI Lindsay Denton, the officer in charge of a police convoy that was brutally ambushed, leaving three officers dead.

À la suite de la tragédie survenue à l'hôpital, Kate Fleming s'infiltre dans l'unité des personnes disparues de Denton.

Denied bail and targeted in prison, a desperate DI Denton tells Kate her theory of why she is being framed.

DI Denton suffers a violent attack in prison and Deputy Chief Constable Dryden shrugs off the allegations against him.

Lindsay fights for her life against troubling details of a vicious conspiracy while Hastings comes under pressure to arrest his senior officer.

AC-12 close in on their targets and Steve appears convinced of Lindsay Denton's innocence, but Kate is determined to prove that she had a role in the ambush.