1Episode 1
Ex-cop Robert and his wife turn their remote Lake District guest house into a safe house. As a family under threat arrive, Robert tries to work out why they are a target.
2Episode 2
The family at the Lake District safe house come under pressure as their cover story is tested. There is increasing concern for eldest son Sam.
3Episode 3
While the police believe they are closing in on the man hunting David Blackwell and his family, Katy still has her doubts about Robert's methods and questions him further.
4Episode 4
Sam and Joe head off across the lake and find themselves caught up in a terrifying ordeal. When events dramatically spiral, it has serious consequences for the family and Robert.