The murder of a jogger has dire personal implications for Renko but she pretends it is a routine investigation. Hicks makes a startling revelation about the Alex Butler murder.

Cast: Jim Sturgess, Agyness Deyn, Nikki Amuka-Bird, Derek Riddell, Jojo Macari, Lorraine Burroughs, Aisling Bea, Varada Sethu, Owain Arthur, Joplin Sibtain, Adrian Rawlins, Kae Alexander, David J Biscoe, Daniel Coonan, Cameron King