THE FLASH Sn. #3 Ep. #21 ‘Cause and Effect’ Synopsis UP!
The Flash is back with a new episode this week for the home run stretch of the season. But, The CW has released the synopsis for the upcoming 21st episode of the season titled, ‘Cause and Effect‘ which is slated to air on Tuesday, May 9th. Check out the details below and let us know what you think! The Flash airs on Tuesday evenings at 7pm Central on the CW.

DRASTIC TIMES CALL FOR DRASTIC MEASURES – 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. David McWhirter directed the episode written by Judalina Neira & Lauren Certo (#321). Original airdate 5/9/2017.
