Supernatural: Bloodlines was a proposed American television series, before being decided against by The CW for the 2014–15 season. It was set to be a spin-off of Supernatural, with the twentieth episode of the show's ninth season serving as the backdoor pilot. The backdoor pilot was written by Andrew Dabb and directed by Robert Singer. The series was set to explore the "clashing hunter and monster cultures in Chicago". Although the show was not picked up by The CW for the 2014–15 television season, the network is open to another spin-off of the series in the future.