Lupin faces off against Sherlock Holmes in London to uncover the truth behind the murder of John Watson. This arc has been criticized for being "clumsily executed" and featuring a twist that many felt undermined character motivations.
The series is divided into two distinct 12-episode story arcs (cours), separated by several standalone episodes. Lupin III: Part 6 (Lupin the 3rd: Part 6) (F) - LOCURA ANIME
This second half explores a more personal mystery involving Tomoe , a woman who may be Lupin’s mother. Reviewers generally found this storyline more exciting and a "big step up" from the first half, though it was still hampered by its short length and predictable elements. Review: Part 6 “Final Thoughts” - Lupin Central Lupin faces off against Sherlock Holmes in London