Hud is an American who survived the Bay of Pigs Invasion and has sworn revenge against Fidel Castro. Many years later, he gets his chance when he is engaged by Mr Rossellini, who blames Castro for his losses when his gambling enterprises and he had to leave Cuba, and the mysterious Mr. Bell, who finances Hud for a mission to Cuba. Hud plans to bring a father-and-son pair of sharpshooters to kill Castro when he stays at a hotel on the Isla de la Juventud. Through Rossellini, Hud hires bar owner and ship's captain Tony to bring his men ashore, but the enterprise is fraught with betrayal.