Season 3, Episode 20 I Know Who You Are
First Aired: May 2, 2017
Barry and the team meet Tracy Brand, a scientist who may be the key to stopping Savitar. Unfortunately, Killer Frost is also after Tracy, so Team Flash must battle their old friend, which proves to be particularly difficult for Cisco. Meanwhile, Joe and Cecile's relationship takes a big turn.
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- Premiered: October 7, 2014
- Rating: TV-PG
- Premise: Scientist Barry Allen acquires super speed through a freak accident and becomes known as the Fastest Man Alive in this adaptation of the DC Comics character the Flash. (more)