TV Episode

The Flash

Season 3 Episode 21 42 min

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S3 E21: Cause and Effect

Barry takes drastic measures to stop Savitar. Meanwhile, H.R. continues to push Tracy Brand to design the trap for Savitar and Killer Frost returns with an interesting proposal.

Season 3 Episode 21 of 23 tt3107288

Season progress

Season 3

91% complete for this season.

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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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