Episode 1
While investigating a suspicious death in a prison, Nikki focuses her attention on the victim’s cellmate, a dangerous criminal from her past.
Episode 2
As the team investigate a second death, Nikki’s theory starts to fall apart. Can she put her fixation with Scott aside and find the killer?
Episode 3
In the first case for new recruit Adam, the murder of a swimming instructor leads the team to suspect her ex-boyfriend, a former cop. Meanwhile, Jack has an unexpected visitor.
Episode 4
Having traced Laura’s last movements to a suburban house, the team work to identify the bodies buried in the garden. Meanwhile, Jack must choose between his brother and the truth.
Episode 5
Nikki, Jack and Adam investigate the murder of a surgeon in a hospital. DNA evidence appears to implicate a patient who was under anaesthetic at the time of the killing.
Episode 6
With their suspect in a coma and an attacker seemingly at large in the hospital, Nikki calls on Adam’s expertise to help solve the case.
Episode 7
The murder of a promising boxer draws Nikki and Jack into the world of underground boxing. Meanwhile, Jack's brother Ryan is released from prison.
Episode 8
Jack, Nikki and Simone investigate another death connected to the underground boxing ring. Jack's loyalty is tested when he fears Ryan has put Cara in danger.
Episode 9
Nikki’s students make an alarming discovery while dissecting a body donated for their training. Jack and Simone try to save care home residents from a flood.
Episode 10
Stranded in the flooded care home, Jack and Simone fight to keep the residents alive - but Nikki discovers that they may be trapped inside with the killer.
