Hong Kong crime lord Chin Chin Chu wants to hire Lupin, Fujiko, and Jigen to recover a gold dragon statue from the wreckage of the Titanic. Lupin is intrigued as it is the same statue that his grandfather attempted to steal right before the Titanic sank. However, Lupin refuses to work with Chu and vows to retrieve it and his family pride on his own.
With help from Kikyo, a childhood friend, Goemon also seeks to maintain his family's honor by ensuring no one, even Lupin, gains the statue. Who will be able to hang onto the statue and learn its secrets?