Knight Rider: Deadly Knightshade

"Deadly Knightshade" is the fifteenth episode of season four of the TV action series Knight Rider and is the seventy-third episode of the series overall. It was directed by Charles Watson Sanford with a script written by Paul Diamond. It first aired on NBC on Friday, January 24th, 1986 at 9:00 pm. In this episode, a woman named Elena Thomas, who works as a mechanic on a race track, gets into some trouble when it appears as if a racecar driver is killed due to her faulty work. Elena contacts her friend Bonnie Barstow, who enlists Michael Knight's aid in solving the mystery. It's off to the races for K.I.T.T. and Michael.