The Wallace brothers and their friend, Jimmy, are still aboard the motor yacht St. Valery and find themselves hijacked by a young German who is determined to use their boat to reach Inaccessible Island in the distant Tristan da Cunha group of islands in the South Atlantic Ocean. He knows of a hoard of art treasures left on the island since the end of World War II and he does not intend to let anyone stop him.
The Wallace brothers and their friend, Jimmy, are still aboard the motor yacht St. Valery and find themselves hijacked by a young German who is determined to use their boat to reach Inaccessible Island in the distant Tristan da Cunha group of islands in the South Atlantic Ocean. He knows of a hoard of art treasures left on the island since the end of World War II and he does not intend to let anyone stop him.