Barry Allen may be the fastest man alive, but Zoom is far more deadly and, somehow, seems more than capable of outrunning The Flash whenever he wants.

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Now, the downright frightening speedster takes center stage in a new poster that asks, "Can the forces of good triumph over an evil so dark?" The image was released by The CW ahead of tonight's episode, the second half of the show's Earth-2 adventure.

"The Flash" stars Grant Gustin, Candice Patton, Danielle Panabaker, Carlos Valdes, Tom Cavanagh, Jesse L. Martin, and airs Tuesdays at 8 p.m. on The CW.