The Golden Apple has Poison

Lupin and Jigen sneak aboard a yacht narrowly avoiding Zenigata; aboard that yacht is the precious golden apple being sent to New York for exhibition. Zenigata catches on to Lupin's plans to steal the apple and keeps his eyes open. Meanwhile, Fujiko is trying to get her hands on it as well, but she is stuck with the owner of the apple, the annoying Prince Oji. When the attempt on the yacht does not work out, Lupin has plans for the New York Marathon. Will Lupin or Fujiko ever get their hands on the apple? What tricks does Zenigata have up his sleeve? And what secret does the golden apple hold?