Ing seri "Undercover Brothers" (2005-2012), Hardy minangka anggota sing nampa kasus saka American Teens Against Crime. The Hardy Boys kadhangkala dibantu sawetara kanca sing bisa ngatasi kasus misteri, kaya ta Chet Morton, Phil Cohen, Biff Hooper, Jerry Gilroy, lan Tony Prito; lan sing arang banget, saka pacar platonic Callie Shaw lan Iola Morton (adhine Chet).