- Previous episode S05E18 - Godspeed
- Number S05E19
- Director Jeff Cassidy
- Writers Jonathan Butler, Gabriel Garza
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.