Plot of the Fuma Clan
Goemon is getting married! Lupin, Jigen, and Fujiko are all there to witness the blessed event. The ceremony is ruined though as Fuma Clan ninjas attack and attempt to steal the sacred urn of the bride's family. Lupin manages to foil the attempt, but Goemon's bride is kidnapped and held for ransom. In exchange for the urn, they will hand over the girl.
Lupin learns that the urn is the key to a hidden treasure and decides to steal the urn and the girl from the Fuma. The race is on to find save the girl and uncover her family's ancient treasure!