Lupin the 3rd Part 4
Lupin steals a precious diamond with the unique power to change the personality of anyone who looks at it, but during his escape the jewel ends up in a boy's backpack. To take it back, Lupin sneaks into the boy's high school as a new professor.
Lupin, Jigen and Goemon want to spend some time in the hills outside Rome, but they casually find a lost dog. The dog belongs to a rich woman who's ready to offer a big reward to anyone who will be able to bring it back to her.
Lupin and his team are kidnapped by Greco, who has sworn to rid the world of criminals. Trapped in a basement, they're challenged to find a way out, but are informed that one of them has been brainwashed to become Greco's personal puppet.
Strange paintings representing Lupin and many others begin to appear around Italy. Lupin and all the represented people meet in Santa Maria delle Grazie, where someone has prepared some sort of revisiting of Leonardo da Vinci's L'Ultima Cena.
Fox, a dangerous mercenary, manages to steal the "Dragon's Tail", a list of MI6's agents around the world. To get it back, Gibbons orders Nyx to retake his place in the secret service. However, Lupin is also looking for the Dragon's Tail.
Lupin steals an old Fiat from a vintage car dealer, and Zenigata cannot arrest him because the car is extremely precious and could be damaged. The Fiat belongs to an aged Italian singer who is now on the brink of death.
Shortly after traveling to Japan Fujiko is kidnapped, and her abductor orders Lupin to steal a precious doll. They both discover that the kidnapping was a trap prepared for them by the Japanese detective Akechi Holmes, and Lupin is arrested.
While watching her last movie, Rebecca remembers when she and Lupin met for the first time. Rebecca and Robson had been kidnapped by a stalker, and Lupin, who had recently arrived in Italy, was able to save them thanks to Zenigata's help.
Rebecca realizes she is in love with Lupin, and announces that she'll capture him. In the meantime, Lupin continues to break into various banks without stealing anything, and Rebecca understands that he's searching for something in particular.
Leonardo is ready to create his greatest masterpiece, the Armonia del Mondo (World's Harmony), and uses a device to entrap all the Italians inside the Sogno Italiano, replicating his consciousness in the mind of every inhabitant of Italy.
Lupin manages to defeat Leonardo, allowing Rebecca to maintain her personality. Leonardo believes to have won, but he soon finds out that Lupin has copied his consciousness in all the Italians' minds, and so he managed to defeat him entirely.