Air date: 2021-09-06

Runtime: 60 min

While investigating a suspicious death in a prison, Nikki focuses her attention on the victim’s cellmate, a dangerous criminal from her past.

Air date: 2021-09-07

Runtime: 60 min

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?

Air date: 2021-09-13

Runtime: 60 min

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.

Air date: 2021-09-14

Runtime: 60 min

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.

Air date: 2021-09-20

Runtime: 60 min

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.

Air date: 2021-09-21

Runtime: 60 min

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.

Air date: 2021-09-27

Runtime: 60 min

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.

Air date: 2021-09-28

Runtime: 60 min

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.

Air date: 2021-10-04

Runtime: 60 min

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.

Air date: 2021-10-05

Runtime: 60 min

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.