Cisco's faith in his ability to fill Barry's shoes as Team Leader is upended when he learns of a shocking murder; Killer Frost trusts no one except herself to hunt down the dangerous Ramsey Rosso.
Stars: Grant Gustin, Candice Patton, Danielle Panabaker
Director(s): Menhaj Huda
Writer(s): Greg Berlanti, Andrew Kreisberg, Geoff Johns