On the ocean floor, Lupin is once again seeking a treasure hoping to get on Fujiko's good side. As Zenigata chases them on sea and land, people around the gang begin to vanish mysteriously. The fog rolls in and Mamo Kyosuke appears in a burst of light; he claims to be from the future and seeks revenge on Lupin III for what Lupin XIII has done to him. Mamo hurls Lupin, Jigen, Goemon, and Zenigata 500 years into the past; as two warring factions fight over a legendary shrine dedicated to time travel, Lupin must find a way to survive the past to ensure his future.
Mentre Lupin III è alla ricerca di indizi per trovare un antico tesoro, viene trovato da Zenigata che si mette ad inseguirlo. Nella fuga dalla polizia, Lupin, Jigen e Goemon si accorgono che sta succedendo qualcosa di strano, le persone attorno a loro iniziano a sparire misteriosamente
今回のお宝は「時を超える乗り物」。ルパンの前に魔毛狂介と名乗る奇妙な男が現れ、「500年前の世界に連れてきた」と言う。言い伝えの謎を解き、500年前の世界からルパン達は無事に戻ることができるのか?巻き込まれてしまった銭形の行方は?不二子にそっくりな美女の正体は?そして魔毛の思惑とは?伏線が張り巡らされた「霧のエリューシヴ」。謎を解き明かしたいなら、一瞬たりとも目を離してはいけない!
En cherchant un trésor légendaire au fond de la mer de Hokkaido, Lupin et ses acolytes ont été propulsés 500 ans en arrière, à cause d'une machine à remonter le temps appartenant à un certain Kyosuke Mamô. Pour retourner à notre époque, Lupin doit soit voler la machine, soit percer le mystère du trésor...