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.

With four men arrested for delivery driver Aurman Singh's murder, detectives work to find the weapons used and try to identify an inside man they believe helped to plan the ambush.

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.

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

When two women are stabbed in a domestic attack, a man claims self-defense. 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 behavior leading up to the attack.