Barry and the team meet Tracy Brand, a scientist, who may be the key to stopping Savitar. Unfortunately, Killer Frost is also after Tracy so Team Flash must battle their old friend, which proves to be particularly difficult for Cisco. Joe and Cecile’s relationship takes a big turn.
| Title | I Know Who You Are |
|---|---|
| Genres | Drama Sci-Fi & Fantasy |
| Release Date | 2017-05-02 |
| Episode Runtime | 00 Hours 23 Minutes |
| Season Number | 3 |
| Episode Number | 20 |
| Production Companies | Warner Bros. Television, Berlanti Productions, DC Entertainment, DC |
