DI Reinhardt closes in on her prey, the burden of the investigation becomes too much for Devlin - and Farrow finally gets some answers.

Prison officer Dave Murdoch is forced on the run with a young female prisoner when his daughter Lucy is kidnapped. Unaware of the threat against Murdoch, Detective Reinhardt has a new prey in her sights.

A shocking revelation leaves Murdoch and Jules unsure of who is holding Lucy. The hunt takes them to Blackpool, Jules' hometown. But Reinhardt is one step ahead, and a trap is set.