AC12’s investigation finally exposes a vicious criminal gang run from within the police. But while Steve now appears convinced of Lindsay’s innocence, Kate remains determined to prove she had a…

A brutal ambush on a police convoy leaves three officers dead and a protected witness fighting for his life. AC-12 turn their spotlight on Lindsay Denton, the officer who led…

When Thomas Malone has his murder conviction overturned after 23 years behind bars, DI Perez has to reopen the investigation into the 1994 death of local teenager Lizzie Kilmuir.