Following Nancy's investigation into the Box Tunnel massacre, Mitchell finds himself trapped by the police. Desperate to escape, Mitchell discovers that help is at hand – albeit from an unlikely and untrustworthy source. Annie is heartbroken but stands by Mitchell and returns to purgatory in search of answers. She finds Lia but things are not as they seemed. This was never a game to Lia – this is revenge. A guilt-stricken Mitchell tries to make amends but, as the revelations pile up, and with Nina in a critical state, George must decide whether he can stand by his best friend.
Elenco: Jason Watkins , Sinead Keenan , Amy Manson , Annabel Scholey , Michael Socha , Damien Molony , Kate Bracken , Steven Robertson , Ruari Mears , Phil Davis , Toby Whithouse , Colin Hoult , Louis Mahoney .