The CW has released the Official Synopsis of The Flash episode “Cause and Effect” (3.21) that will be aired on Tuesday, May 9 at 08:00-09:00 PM
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.
“Cause and Effect” (#321) was written by Judalina Neira & Lauren Certo and directed by David McWhirter.
In The Flash, Barry Allen was just 11 years old when his mother was killed in a bizarre and terrifying incident and his father was falsely convicted of the murder. With his life changed forever by the tragedy, Barry was taken in and raised by Detective Joe West, the father of Barry’s best friend, Iris. Now, Barry has become a brilliant, driven and endearingly geeky CSI investigator, whose determination to uncover the truth about his mother’s strange death leads him to follow up on every unexplained urban legend and scientific advancement that comes along.
Based on characters appearing in comic books and graphic novels published by DC Comics, THE FLASH is from Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television.