French-Vietnamese David Dai, veteran of an African war in which he served as a mercenary, has taken a new assignment as bodyguard in Caribe, an underwater nation in the Caribbean. A stranger in a strange land, he enters into a volatile relationship with his new employer Mayla Ling, banker and heiress to an old-money fortune. But, as Mayla negotiates the biggest deal of her life, she attracts the attentions of La Mano di Dios, a revolutionary terrorist group, and David finds himself plunged back into the nightmare of his own violent past...