Third officer on Norwegian sail-training ship Sorlandet Cass Lynch becomes suspicious there might be a stowaway on board, and as the ship nears Scottish Waters one of the trainees goes missing.
Cass and DI Gavin Macrae soon find themselves searching for a ruthless killer in an extremely remote setting..
Third officer on Norwegian sail-training ship Sorlandet Cass Lynch becomes suspicious there might be a stowaway on board, and as the ship nears Scottish Waters one of the trainees goes missing