| Loner Sam's life is transformed when he comes into possession of a gun and starts to break the law. His ambitious policewoman sister Gina is paid to uphold it and makes it her mission to find the owner of the weapon. The family saga plays out against an inquiry into the shooting of a local businessman that raises questions for Sam and Gina about their father's murder when they were young children. |
| Name | Character | Episodes |
|---|---|---|
| Nia Roberts | Linda Jenkins | 14 |
| David Hayman | Jeff Campbell | 6 |
| Dyfan Dwyfor | DI Morgan Riley | 6 |
| Alexander Vlahos | Dai Llewellyn | 4 |
| Matthew Aubrey | Rhys | 4 |
| Alexandria Riley | Tracy | 2 |
| Claire Cage | Leanne | 2 |
| Darren Evans | Steffan | 1 |