Lupin III: Operation Return the Treasure Episode 1

After robbing a Moscow casino right under Zenigata's nose, Lupin sets his sights on stealing the Trick Diamond. He and Jigen head to the estate of the recently deceased Mark Williams, another master thief who's had the diamond, as well as other treasures, in his possession for years. However, instead of finding the diamond, Lupin & Jigen find Fujiko, who tells them about Mark's dying wish - Lupin