Fujiko and a mystery man come bringing a request that Lupin steal a mountain of gold bullion from the Swiss Bank, which is renowned throughout the world for the strength of its security. After stealing the gold, Lupin and the gang melt it down and mold it to look like the body of a truck. They then paint the gold cast and replace an old truck body with it. After Lupin and the others get the car past the cops, Fujiko and the mysterious man betray Lupin and take the gold for themselves.