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?
Thawne talking about his Negative Speed Force to Nora echoes how he spoke of the Speed Force during the season one finale "Fast Enough". See more
[watches Ralph shape-shift
References Back to the Future