When Barry and Iris deal with the loss of their daughter, the team faces their greatest threat yet - one that threatens to destroy all of Central City; Killer Frost has a brush with death that will change her relationship with Caitlin.
Episode rating
Cast of episode
64
24
5
3
3
- Barry Allen
- Caitlin Snow
- Ralph Dibny
- Iris West-Allen
- Cisco Ramon
- Dr. Harry Wells
- Cecile Horton
- Joe West
- Chester P. Runk
- The Monitor
- Dr. Ramsey Rosso
- Kamilla Hwang
- Zoom
- Officer Daisy Korber
- Night Manager
- Gat