A secret from his father propels Jack to Belfast. Meanwhile, Simone and Nikki investigate the mystery of a burned body. As familial secrets come to the surface, Jack faces tragedy head on.

Chris Anderson, Clive Russell, Cory Chambers, David Leon, Declan Rodgers, Fiona Mulvaney, Frances Tomelty, Francesca Henry, Glynis Barber, Jemma Redgrave, Kate O'Toole, Lalor Roddy, Mark Frost, Matthew Gravelle, Rhiannon Jones, Richard Durden, Rosalyn Wright