Series 5, Episode 3

Series 5, Episode 4

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 Alice.

Series 5, Episode 5

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.

Series 5, Episode 6

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 traumatized after his discovery on the beach.

Thomas Malone returns to Shetland after serving 23 years in jail for the murder of teenager Lizzie Kilmuir, a crime he swears he didn't commit. Whilst most of the islanders are convinced of Malone's guilt, the appeal and his subsequent release have thrown up the possibility that someone else could be responsible for Lizzie's murder, but as Malone arrives back on Shetland, local journalist Sally McColl is found murdered. Perez and the team must investigate both cases

The hunt is on for Malone's attacker, Malone seems to know who is responsible, but isn't keen to share the information. Perez and Rhona believe Andreas Hagan, the health and safety officer at Forst Energy isresponsible for covering up corporate manslaughter and is their strongest lead in Sally McColl's murder. Meanwhile, DNA testing in the Kilmuir case yields a surprising result.