When Icicle returns to enact the next phase of his devious plan, Caitlin and her mother, Dr. Carla Tannhauser, must resolve their long-combative relationship to defeat the icy monster. After Barry makes a big decision about their family without consulting her, Iris decides to take matters into her own hands.
Did You Know?
Eobard has stated that the Negative Speed Force is not meant to be used by every speedster, since it has a negative effect; as it (apparently) causes most speedsters to go insane. In the DC comics, Barry also acquired the Negative Speed Force powers and had become the Negative Flash. It is possible that with Nora, having the Speed Force and Negative Speed Force will kill her or make her insane. See more
Are you okay?
I will be as soon as we find Icicle. Uh, my mom told me what he stole. It's a prototype cryo-atomizer.
And what can he do with that?
References Back to the Future