Fidel Castro, who survived the war and many assassination attempts, died peacefully of old age. The new leader of Cuba should be his brother Raul, who is ready to adopt a policy of softening the regime and rapprochement with the United States. But not everyone likes the new order: some would like to seize power themselves, while others are only happy to fuel the conflict and profit from the unrest. All this would have remained the internal affairs of Cuba, but the tireless Dirk Pitt from the American National Underwater Research Administration, who was looking for Aztec treasures, made an alarming discovery: Cuban ambitious people made the World Ocean a bargaining chip in their game, putting the world on the brink of a global environmental catastrophe...