The CW released official stills from Season 6's fourth episode, ominously titled "There Will Be Blood," as Barry prepares the rest of Team Flash for his impending demise. Also revealed is Killer Frost's black, flowing new costume as she meets with a costumed Barry in what appears to be a hospital. Meanwhile, as Barry prepares for the end, new recurring character Ramsey Rosso will sacrifice his humanity to become a full villain.
There Will Be Blood (Ep# 604)HALLOWEEN EPISODE -- Barry's (Grant Gustin) efforts to prepare Cisco (Carlos Valdes) for Crisis are derailed when Cisco schemes to save Barry's life instead. Meanwhile, Ramsey Rosso (guest star Sendhil Ramamurthy) uses his deadly new abilities to save his own life, while sacrificing his humanity in the process. Marcus Stokes directed the episode written by Lauren Certo & Sterling Gates (#604). Original airdate 10/29/2019.
Ramsey was introduced in the Season 6 premiere as a scientist who underwent his own sinister transformation. Given the episode's title, the Halloween special could tie in to Ramsey becoming the Flash antagonist Bloodwork.
Airing Tuesdays at 8 p.m. on The CW, The Flash stars Grant Gustin, Candice Patton, Carlos Valdes, Danielle Panabaker, Tom Cavanagh, Jesse L. Martin, Danielle Nicolet and Hartley Sawyer.