In the murky waters of Sevastopol harbour, Spetsnaz assault commandos shadow special forces operative John Stratton on a secret surveillance mission. With his cover blown, Stratton needs to get out fast. In the North Sea, the giant oil platform Morpheus is in the grip of a team of hijackers. With the Special Boat Service locked down, the only option is to bring in a small team of unproven operatives led by Stratton. He knows he needs to redeem himself, but has another reason for going. One of his old friends is on the oil rig and could be first in line to die unless Stratton can get there in time. But one of Stratton’s squad is playing a deadly game.