Mark finds himself dealing with a family left reeling from an unexplained assault. David Blackwell has been hospitalized and an innocent passer-by is in a critical condition. Mark needs to find out why this family was targeted.

The family at the safe house come under pressure as their cover story is tested. There is increasing concern for eldest son Sam, who remains missing, but it is the father David who finds himself under police scrutiny.

Four-part thriller set in the beautiful wilderness of the Lake District. Former detective Robert and his wife Katy are asked by close friend and ex-colleague DCI Mark Maxwell to turn their remote guest house into a safe house. While the police believe they are closing in on the man hunting David Blackwell and his family, Robert takes a closer look at the relationship between Ali and her sister. Katy still has her doubts about Robert's methods and questions him further.

Four-part thriller set in the beautiful wilderness of the Lake District. In the final episode, Sam Blackwell and his young brother Joe head off across the lake and find themselves caught up in a terrifying ordeal. Robert and Mark work to resolve the situation, but when events dramatically spiral, it has serious consequences for both the family and Robert as he finds himself in direct opposition to Mark.

Former detective Tom Brook is convinced that the Crow, a notorious killer, is back.

As the search for Julie intensifies, John's erratic behavior causes Tom to become suspicious.