S03E20 I Know Who You Are The Flash
calendar_today 2014. Greg Berlanti. Geoff Johns. Andrew Kreisberg.
people Grant Gustin. Candice Patton. Danielle Panabaker. Carlos Valdes.
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 Cecileâ€™s relationship takes a big turn.