Episode 1
A boxer dies from brain injuries mid-bout. A new DSI takes over the team's investigations. Sam and Wyn bury their mother.
Episode 2
Sam discovers why Kevin entered a bare knuckle fight, as well as uncovering evidence of more foul play in the boxing circuit.
Episode 3
Stuart Evans is in the advanced stages of Aids when he dies, and his body is donated to science. However a routine toxicology test reveals foul play was at work.
Episode 4
The police make an arrest, but do they have the right suspect? Sam pursues her own line of investigation.
Episode 5
The murder of a married woman who was having an affair seems straightforward. Friction develops between Dr Ryan and the police when the evidence complicates their case.
Episode 6
The murderer makes a direct threat against Sam's life after she uncovers the evidence needed to identify them.
Episode 7
The police suspect a violent alcoholic of the murder of an elderly woman. Sam clashes with the police when she refuses to support their case.
Episode 8
Sam's pursuit of her own theories leads her into dangerous places, both personally and professionally.