Lupin and Jigen plan to steal a large sum of money from a racetrack in New York. Their scheme is flawless, and the only thing left is to wait for six days. To celebrate the impending success, they head to a town. Lupin separates from Jigen because he remembers another engagement. Later, Lupin saves a girl named Michelle, who is being chased by suspicious men. She asks Lupin to steal a diamond from her father so he cannot carry out his evil plans. Lupin believes he can obtain both the money and the diamond after six days, and he agrees to guard her for that period. Meanwhile, Jigen meets his old comrade, Ryatte, and they discuss another business venture. Jigen is then expected to spend six days with Ryatte before th...