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.
栗田貫一
as Arsène Lupin III (voice)
小林清志
as Daisuke Jigen (voice)
増山江威子
as Fujiko Mine (voice)
井上真樹夫
as Goemon Ishikawa XIII (voice)
納谷悟朗
as Inspector Koichi Zenigata (voice)
中村獅童
as Kyosuke Mamo (voice)
桑島法子
as Iseka (voice)
Mari Sekine
as Ofumi (voice)
Shotaro Okubo
as Takaya (voice)
石田彰
as Eshika (voice)
渡部猛
as Obitaki (voice)
楠大典
as Takaya's Father (voice)
