Hoping to end his partnership with Nelson, Jean confides in DCI Squire; Julie digs deeper into Jean's secrets; Martin starts an ill-advised affair.

Cast: Marc-André Grondin, Denis Ménochet, Miranda Raison, Doug Allen, Liam Garrigan, Ciarán Owens, Kate Magowan, Tanya Fear, Naomi Radcliffe, Lucy Akhurst, Jemma Donovan, Niall Hayes, Brendan Coyle, Izabella Urbanowicz, Jake Curran