The CW network has released the synopsis for episode #307 of The Flash, which you can check out below. The installment, titled “Killer Frost,” is officially described as follows:
KEVIN SMITH DIRECTS; KILLER FROST EMERGES — Caitlin (Danielle Panabaker) uses her powers to save Barry (Grant Gustin) but as her mother predicted, the effort unleashes her inner Killer Frost. Killer Frost goes on a rampage looking for Dr. Alchemy, kidnapping Julian (Tom Felton) and battling both The Flash and Vibe (Carlos Valdes). Meanwhile, Joe (Jesse L. Martin) and H.R. (Tom Cavanagh) have a heart to heart talk.
The Flash “Killer Frost” was directed by Kevin Smith with story by Judalina Neira and teleplay by Andrew Kreisberg & Brooke Roberts. The episode airs Tuesday, November 22, at 8pm on The CW.