Watch the two-hour season finale of Unidentified: Inside America's UFO Investigation, Saturday at 9/8c, and stay up to date on all of your favorite History Channel ... source

Watch Unidentified: Inside America's UFO Investigation, returning soon, and stay up to date on all of your favorite History Channel shows at ... source

Watch all new episodes of Unidentified: Inside America's UFO Investigation, Saturdays at 10/9c, and stay up to date on all of your favorite History Channel shows ... source

Watch Unidentified: Inside America's UFO Investigation, returning soon, and stay up to date on all of your favorite History Channel shows at ... source