Interested parties converge on the Raven’s treasure in the shadows of the London underground as the true identity of Watson’s killer comes to light.

Lupin has set up his quarters in New York, but suffers from boredom until Fujiko tells him about a jewellery auction featuring treasures associated with classical myths. When he sees a large red jewel in the catalogue which was stolen from his grandfather's vault by a female master thief, Lupin decides to steal it back.

Blood may be thicker than water, but is it as thick as thieves? Find out as Fujiko, Goemon and Jigen race to bring Lupin back to himself in the finale.