TV Guide Drama Sunday

Feature-length episode. Jack turns out to have a personal connection to the prime suspect in a teenage girl's murder, so he is taken off the case and replaced with another forensic scientist seconded to the Lyell Centre. But he finds himself instinctively drawn into the investigation, alienating himself from Nikki and the team as he tries to find an alibi for the supposed killer. Meanwhile, the victim's best friend is consumed with guilt, leading her to take drastic action. Crime drama, starring David Caves, Emilia Fox and Richard Lintern, with guest appearances by Haydn Gwynne and Ashley Walters

The arrest of a Turkish girl who has been working illegally leads Ucos to reopen the case of Richard Gibson, a pub landlord who died in a fire in 2009. The original investigation concluded Gibson's death was probably suicide due to his dire financial situation, but the detectives have some questions about the pub's live-in barmaid, who disappeared on the night of the blaze. Could widowed landlady Joanne, pub regular Jason, or the dead man's best friend David, who happens to have a sideline in passing off his British-produced sparkling wine as French champagne, supply them with any answers? While the case tests the team's brain power, Sasha is also keen to raise their fitness levels as she signs them up for a five-a-side football competition. Phil Davis, Niamh Cusack and Tom Georgeson guest star