Following a lead from Fujiko, Lupin and Jigen excavate the sea floor in Kiritappu to search for a lost underwater treasure that supposedly holds the secrets of time travel. After the Lupin gang escapes a run-in with the law, a strange man calling himself Kyousuke Mamoh strands the Lupin gang hundreds of years in the past.
Director: Toshihiko Masuda
Producer: Toshio Nakatani, Yasumichi Ozaki
Screenplay: Yuka Yamada
Director of Photography: Junko Miyakawa