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The Flash

Season 3 Episode 20 42 min
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S3 E20: I Know Who You Are

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. Joe and Cecile’s relationship takes a big turn.

Season 3 Episode 20 of 23 tt3107288

Season 3 Episodes

23 episodes
E1 Flashpoint E2 Paradox E3 Magenta E4 The New Rogues E5 Monster E6 Shade E7 Killer Frost E8 Invasion! (II) E9 The Present E10 Borrowing Problems from the Future E11 Dead or Alive E12 Untouchable E13 Attack on Gorilla City (1) E14 Attack on Central City (2) E15 The Wrath of Savitar E16 Into the Speed Force E17 Duet (II) E18 Abra Kadabra E19 The Once and Future Flash E20 I Know Who You Are E21 Cause and Effect E22 Infantino Street E23 Finish Line

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