Episode 1
On the Isle of Skye, experienced climber Frank has gone missing in the mountains. As the weather closes in, police desperately search for clues to discover his exact route.
Episode 2
The county lines drug epidemic has taken further hold in Inverness, bringing increased violence and drugs deaths. Specialist CID officers bust down doors in search of the gangs.
Episode 3
Detectives race to the scene of a violent attack on an island in the Hebrides, cops settle a dispute between two crofters, and an arrest is made in Shetland for a hate crime.
Episode 4
Officers in Kyle of Lochalsh conduct a search warrant on a flat of an elderly neighbour who they suspect is dealing Class A drugs.
Episode 5
Cops search for a young man lost in the foothills of the Cairngorms. In Inverness, a shocking hit-and-run sparks a hunt for a man and woman on a violent crime spree.
Episode 6
Torrential rain hits the Highlands, flooding roads and fields. As conditions worsen, a missing person search becomes a desperate manhunt.
