Take a look @ new footage, plus images from "The Flash" episode "I Know Who You Are", written by Bronwen Clark, Joshua V. Gilbert and directed by Hanelle Culpepper, airing May 2, 2017 on The CW:
"...'Barry' (Grant Gustin) and the team meet 'Tracy Brand' (Anne Dudek), a scientist, who may be the key to stopping 'Savitar'. Unfortunately, 'Killer Frost' (Danielle Panabaker) is also after Tracy so 'Team Flash' must battle their old friend, which proves to be particularly difficult for 'Cisco' (Carlos Valdes).
"Then the relationship between 'Joe' (Jesse L. Martin) and 'Cecile' (Danielle Nicolet) takes a big turn..."
Click the images to enlarge and Sneak Peek "The Flash: I Know Who You Are"....