Jake and Corky fly a British Nobleman to a cruise ship only to find out that this man has planted a bomb on board, and he will tell the captain where it is only when he is given the royal jewels that are on board the ship with the Duke of Windsor.

Two nuns carrying vaccinations to a poor village in China land on Bora Gora. Jake recognizes one of them as his former girlfriend and is suspicious of her motives, but when the clipper that is carrying the vaccinations is stolen, the two of them must work together to retrieve it.