The two brothers Trinity and Bambino are exchanged by two federal agents and take advantage of the situation to steal a huge booty hidden in a monastery by a gang of outlaws.
Alan gets a map to some war treasure which the Japanese army left behind on a small Pacific island at the end of World War II. But some gangsters try to steal the map from him and so he hides on Charlie's boat which just leaves the harbor. He manipulates the ship's compass so that Charlie is not aware that he is sailing to the treasure island. But when they step on the island, they discover that it is not as abandoned as they believed: there are some natives - and a Japanese soldier still defending the treasure
The "Trinity" crew makes another modern era film. Plata and Salud are pilots ditching aircraft for insurance money. They wind up crashing for real in the jungles of South America. The plot involves "Mr. Big", who is buying the diamonds from the miners for much too little, and has thugs who keep the price down. Of course, Plata and Salud side with the miners
