Three Russians—former FSB colonel, businessman, and sniper—get pulled into a dangerous matter. Their goal is the treasures hidden in the hold of a sunken submarine. Their enemy is the Chechen mafia, which has stretched its tentacles even to this remote island in the Canary Archipelago. Their weapon is courage and confidence in their own strength, allowing them to keep doing their job even under the gun sights of bandits. Only none of the treasure hunters suspects that they will be able to find, in the caches of the Golden Shark…