Knight Rider: Knightmares

"Ring of Fire" is the eleventh episode of season two of the TV action series Knight Rider and is the thirty-eighth episode of the series overall. It was directed by Georg Fenady with a script written by Bruce Belland and Roy M. Rogosin. It first aired on NBC on Friday, December 11th, 1983 at 9:00 pm. In this episode, a blackout cripples the computer database at a hospital where April's ill niece, Becky, is awaiting a bone marrow transplant. Using K.I.T.T.'s database, they find that the only compatible donor they can track down is a gang member named Julio Rodriguez. Michael and K.I.T.T. race to find Julio and hopefully get him to agree to help them in time.