Lupin has his sights on a valuable antique owned by Hong Kong businessman Gozen. However, Gozen has plans to amuse himself by using the antique to bait Lupin and the gang into a trap. To counter Goemon's swordsmanship, Gozen enlists the kung-fu expert and Goemon's former rival Seiryu. Silver threads gleam in the moonlight, and the martial arts battle rages in the sky between the skyscrapers. Can Goemon best his rival and help Lupin secure Gozen's prize?