When Professor Bresson, touted to be this century's most established archaeologist passes away, he leaves behind the Bresson Diary, rumored to hold clues to the treasures of a lost civilization. When elusive Lupin III, grandson of the famous French thief, learns of this, he decides to snatch the sought-after diary to claim the lost treasures for himself and to redeem his grandfather's name, who allegedly was not able to solve the Bresson diary...?...