Marcella's latest blackout leaves her with an unexplained corpse. Wondering why DCI Sangha is still in Belfast, Jack decides to investigate on his own.

Cast: Anna Friel, Glen Wallace, Aaron McCusker, Michael Colgan, Amanda Burton, Kelly Gough, Jorin Cooke, Laurence Kinlan, Ray Panthaki, Eugene O'Hare, Orla Mullan, Hugo Speer, Hayley McQuillan