Complex sentence: For season 3, although the show had the same actors, ABC omitted the "Nancy Drew" part, thus, creating a new show, titled "The Hardy Boys" in which the Hardys are hired by the US Justice Department as professional investigation agents.
Split into simpler sentences: For season 3, although the show had the same actors, ABC rebooted the series and omitted the "Nancy Drew" part. The series, now titled "The Hardy Boys", had Frank and Joe hired by the US Justice Department as professional investigation agents.