The CW Television Network has released the official synopsis for ?Killer Frost." The episode is directed by Kevin Smith of Clerks fame and is the seventh episode of The Flash's third season. It'll feature Dr. Caitlin Snow being forced to use her metahuman powers to save Barry Allen/ This in turn leads to her full transformation into Killer Frost!
Kevin Smith directed the episode with story by Judalina Neira. The teleplay was written by Andrew Kreisberg & Brooke Roberts.