“When Killer Frost shows up, Iris has a lot of compassion for Killer Frost and a lot of compassion for Caitlin and is pivotal in helping Caitlin reconcile herself with her past and some of the mistakes that Killer Frost made.”
Killer Frost is going to be making her presence felt in The Flash sooner than some expected.
The Flash airs Tuesdays at 8pm on The CW.
Caitlin was also welcomed back for her desperately-needed scientific skills, and with a promise from her that Killer Frost was gone for good.