Other Title: 快盗戦隊ルパンレンジャー VS 警察戦隊パトレンジャ - 裏のオークション, Kaitō Sentai Rupanrenjā VS Keisatsu Sentai Patorenjā - Ura no Ōkushon
Summary: Noel discovers that a piece of the Lupin Collection, a small mermaid
statue, is up for bid at a hidden auction in the city. In order to
secure its retrieval, Noel takes Umika with him to steal back the
Collection undercover. However, a new Gangler, Gristo Lloyd appears
there! Meanwhile, the Global Police are busy investigating the
mysterious auction alongside Noel. Despite him being there to retrieve
information for the police, he also seeks to steal the Collection right
under their eyes…