When an experiment to save Barry's speed backfires, Nash Wells searches for a way to save The Flash and comes up with a dangerous plan. Meanwhile, Iris makes a startling realization inside the Mirrorverse and Cecile faces off with Rosa Dillon.
| Creator | Geoff Johns |
|---|---|
| Actor | Grant Gustin, Candice Patton, Danielle Panabaker |
| Country | United States of America |
| Production | Warner Bros. Television |