Secretly operating his cruiser as a casino at sea isn’t enough for California mafia don Lukino Marcano. He’s also looking for the gold-laden boat wreckage worth the budget of a small country! Lupin sniffs out the plan to recover this long-lost treasure and brings along his partners Jigen, Goemon, and Fujiko for the ride to crash Lukino’s party. But Inspector Zenigata is always on Lupin’s tail, and this time he’s got an unusually aggressive local cop for a partner! Watch as Lupin uncovers the true mystery behind the Alcatraz island prison and the sinister syndicate, the Secret Seven!