The Kimberly Diamonds, which take up a full half of the diamonds traded annually worldwide, are worth a good $30,000,000,000. Lupin's dream is to claim those diamonds and make them into a diamond carriage for his honeymoon with Fujiko, but Zenigata isn't so naive as that. Lupin and company's crash-landed transport plane is fully surrounded by policemen from all over the world, gathered together and mobilized by a call from the UN! Will a shot from a giant crossbow made on the spot succeed in snatching victory from the jaws of defeat?!