During Goemon's marriage ceremony to Murasaki Inabe, the daughter of a samurai clan's chief, chaos ensues as the Fuma ninjas launch an assault, abducting the bride-to-be and requesting her family's ancestral riches as a trade. In a race against time, Lupin, Jigen, Goemon, and Fujiko reunite to rescue Murasaki and secure the treasure before the Fuma clan can seize it.