The Flash (2014) (2014)
S03E20 I Know Who You Are
Episode Overview
Barry and his team encounter Tracy Brand, a brilliant scientist who could hold the solution to defeating Savitar. However, they soon find themselves facing Killer Frost, who is also targeting Tracy. This confrontation poses a significant challenge for Cisco, as he grapples with the fight against their former ally. Meanwhile, Joe and Cecile's relationship reaches a pivotal moment, marking a significant change in their bond.
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