Sneak Peek new footage, plus images from "The Flash" episode "I Know Who You Are," written by Judalina Neira, Lauren Certo and directed by David McWhirter, airing May 9, 2017 on The CW:
"...'Barry' (Grant Gustin) takes drastic measures to stop 'Savitar'.
"Meanwhile, 'H.R.' (Tom Cavanagh) continues to push 'Tracy Brand' (Anne Dudek) to design the trap for Savitar, as 'Killer Frost' (Danielle Panabaker) returns with an interesting proposal..."
Click the images to enlarge and Sneak Peek "The Flash: I Know Who You Are"...