The Flash Season 3 Episode 21 | Cause and Effect Promo

Following last night’s episode – which revealed the secret identity of Savitar – The CW has released a trailer and promo for next week’s twenty-first episode of The Flash season three, entitled ‘Cause and Effect’; watch below…





   
Barry (Grant Gustin) takes drastic measures to stop Savitar. Meanwhile, H.R. (Tom Cavanagh) continues to push Tracy Brand (guest star Anne Dudek) to design the trap for Savitar and Killer Frost (Danielle Panabaker) returns with an interesting proposal.

The next episode of The Flash airs on Tuesday 9, May