Ep. 19: A Safe Bet
Ipinalabas noong Pebrero 13, 1978
Vault maker Marukin Safe Company is forced into bankruptcy after Lupin cracks open their impenetrable safes. To test his own skills, Marukin's son challenges Lupin to open a safe he has designed, and resorts to rather drastic measures to convince a reluctant Lupin. Furthermore, the safe Lupin must open has no keyhole, dial or even a door! Could this be the first safe Lupin can't open? (Source: Crunchyroll)