Flash: Deadly Nightshade

"Deadly Nightshade" is the twelfth episode of the superhero action/fantasy series The Flash and the thirteenth episode of the series overall (if one counts the two-part series premiere as two episodes). It was directed by Danny Bilson and written by Howard Chaykin and John Francis Moore. It first aired on CBS on Saturday, February 7th, 1991 at 8:00 pm.