Episode five continues to follow the investigation into the killing of Carl Hopkins.

With the suspected inside man arrested, detectives must prove he knew he was setting up a murder. A new investigation begins when a man tries to kill himself and his learning-disabled son.

The critical first two days of the investigation into the murder of a man in his flat.

Detectives and specialists investigate a double stabbing in Colchester.

A manhunt ensues when one suspect names another.

The investigation into the murder of Courtney Valentine-Brown concludes.

A mother and daughter are found with serious stab wounds in Worcester. The daughter’s partner claims he did it in self-defence. Detectives must unravel what really happened.

After a delivery driver is ambushed and beaten to death in broad daylight, detectives from West Mercia Police begin a major manhunt to track down his killers.

When two women are stabbed in a domestic attack, a man claims self-defence. But his injured partner has recovered enough to give her account.

After a man attacks and kills his mother with a hammer, detectives investigate his behaviour leading up to the attack.