After obtaining a document revealing the whereabouts of the legendary Columbus Egg, a mystical artifact capable of manipulating the weather, Fujiko enlists Lupin and his crew to retrieve this ancient treasure. To safeguard the Egg from a malevolent foe, Fujiko commits the file to memory before eradicating it. Tragically, this act results in her developing amnesia, transforming her demeanor and erasing her recollection of Lupin and the gang. Now, the race is on to restore Fujiko's true self before the Columbus Egg lands in the clutches of a deranged adversary.