Alan understands a map to a war treasure that the army left behind to a small Pacific island at the ending of World War II. But some gangsters decide to try to slip the map from him and so he hides Charlie's boat that leaves the refuge. So that Charlie isn't aware he is sailing to the treasure island, he manipulates the ship's compass. However when they step on the island, they discover since they thought that it is not as abandoned: You can find several natives - and a Japanese soldier still defending the treasure