Following a daring diamond theft in Brazil, Lupin conceals the precious gem inside a doll and boards a plane to flee the country. However, his plan takes a turn when the doll is snatched by a young girl named Julia, under the care of Fujiko Mine, Lupin's acquaintance. Amidst the chaos, the aircraft is hijacked, leading to Julia's abduction by a group with a shared interest in a book of Nostradamus prophecies housed in Julia's father's tower. With common foes and intertwined objectives, Lupin and his allies unite to rescue the girl, reclaim the stolen diamond, and unearth the enigmatic truths veiled within the mysterious tome.