Nora and Killer Frost rush in to save Iris in these new stills from tonight’s all new The Flash.

In “Cause and XS”, after Iris (Candice Patton) lands in serious danger, Nora (Jessica Parker Kennedy) races to save her mother with Killer Frost (Danielle Panabaker).

Meanwhile, Barry (Grant Gustin) puts the finishing touches on the metahuman cure, leaving Cisco (Carlos Valdes) with a rare night off so he decides to take Kamilla (Victoria Park) on a date.

The Flash airs TONIGHT, February 12th @ 8PM ET/PT on The CW.