Arsène Lupin Sansei is the grandson of the master thief Arsène Lupin. With his cohorts Jigen Daisuke and Ishikawa Goemon XIII and his love interest Mine Fujiko, he pulls off the greatest heists of all time while always escaping the grasp of Inspector Zenigata Kouichi.

Source: ANN

Note: Before the first series started, there was Lupin III Pilot film which was about 12 minutes and 30 seconds long which was aired on 1969 (but it was re-made and aired on 1978).

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Side story: Lupin Sansei: Cagliostro no Shiro
Sequel: Lupin Sansei: Ikiteita Majutsushi
Sequel: Lupin Sansei (1977)
Other: Monkey Punch Manga Katsudou Dai Shashin
Prequel: Lupin Sansei Pilot Film
Other: Lupin Shanshei
Alternative version: Lupin Sansei: Lupin wa Ima mo Moete Iru ka?
Side story: Lupin Sansei 3DCG
Prequel: Lupin Zero