Lupin III: Walther P38

A fake Lupin calling card lures Inspector Zenigata to a politician's party, where masked assassins suddenly launch a massacre. During the attack, Zenigata is shot by a Walther P38 that Lupin immediately recognizes as a weapon tied to his own past, giving the thief a personal reason to pursue the killers.

The trail leads Lupin, Jigen, Goemon, and Fujiko to a hidden island controlled by the Tarantula assassins. Trapped by a poison that prevents the island's killers from escaping, Lupin joins dissidents who want freedom while searching for the truth behind the pistol, a betrayal from his earlier days, and the organization ruling the island.