Plot

Fujiko convinces Lupin to make a theft by claiming to marry him, but when she double-crosses him she is caught by Zenigata... worse still, Lupin secures her release on the claim of a wedding.

On the promise that Fujiko will marry him, Lupin steals gold bars from a bank and gives them to her on her birthday. She drugs him and steals the gold, but he figured this sort of thing would happen and tracks her down. Zenigata tracks them down as well, and using the device Lupin used to steal the gold, a remote-control volleyball, he arrests them both, having hid a recording device in one of the gold bars. Knowing that he and Fujiko are going to be executed, Lupin convinces Zenigata to have them married at "the greatest church in the world". Lupin secretly contacts Jigen and Goemon through a transmitter hidden in his jacket cuff button. As Lupin and Fujiko are about to be married, an officer comes in and tells Zenigata that Lupin has robbed the bank again. Zenigata finds that the Lupin and Fujiko before him are dummies and rushes off to investigate. Once Zenigata is gone, the officer reveals himself to be Goemon in disguise, and the priest marrying Lupin and Fujiko is Jigen. The dummies in the church turn out to be the real Lupin and Fujiko after all. Lupin robs the bank again, using the volleyball, and makes off with the gold on a highway. Zenigata catches up and Fujiko ejects the rest of the gang into the ocean. Zenigata reveals that he hid another transmitter in the truck and continues to pursue Fujiko.