Caitlin uses her powers to save Barry but as her mother predicted, the effort unleashes her inner Killer Frost. Killer Frost goes on a rampage looking for Dr. Alchemy, kidnapping Julian and battling both The Flash and Vibe. Meanwhile, Joe and H.R. have a heart to heart talk.
The Flash S03E07 – Killer Frost
Season: 3 | Episode: 7
Aired: November 22, 2016
Runtime: 42 min

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