Catherine Walker

With Olivia giving up hope, Perez at last closes in on Zezi’s location. But can he reach her before it’s too late? Duncan is traumatised after his discovery on the…

The discovery of Nikki’s body intensifies the search for Zezi. Perez feels that time is running out. A desperate Olivia ties to get information from Jamie Hayes.

Sure that Zezi is being held on Shetland, Perez and the team ramp up the pressure on their remaining leads. Personally, Perez finds himself in turmoil after his kiss with…

Sandy feels the heat in the aftermath of Calum’s suicide. Convinced that McGuire is the key to cracking the case, Perez travels to Glasgow in an attempt to track him…

A horrifying discovery at the Hayes house changes the course of the investigation. Perez establishes the probable cause for Daniel’s murder and his sister Zezi’s disappearance.

A severed hand washes up on a Shetland beach, with further body parts discovered in a holdall that has been dumped at sea. Perez and the team begin a complex…

Section 20 is torn between devoting their resources to the mission or saving one of their own. Stonebridge’s health continues to affect him in the field. Al-Zuhari’s network moves forward…