The episode follows the abduction of Rebecca Rossellini, a striking entrepreneur who appears in the current Lupin III anime broadcast in the bustling metropolis. Hearing her disappearance in the city today, Lupin immediately sets out to save her. Moreover, he receives a written dare from a shadowy source called "The Masked Count," proposing a race: in a daring duel who will first secure the legacy of Count Cagliostro.