Annika

When a phone with a brutal drowning recorded on it is handed in to MHU headquarters, the pressure is on for Annika and the team to track down the murderer.

The MHU are sent to Edinburgh to investigate the death of a recently released prisoner whose body is pulled out of the Forth River, imprisoned in a dog cage.

The team investigate a Scottish millionaire found dead in his own shark tank, leading Annika to reflect on Jekyll and Hyde.

Annika reflects on 1984 when the team are flown to the Hebridean islands to investigate the death of a man found in a block of ice.

When Morgan starts working at a remote Scottish eco-resort, Annika's trip to visit her is interrupted when a local builder employed by the resort turns up dead in a nearby stream.

A brutal murder on Glasgow's canals hits close to home when the victim is identified as a former police officer.