The Flash (2014) (2014)

S4E9 Don't Run

Amunet abducts Caitlin, cuffing her with meta-dampening handcuffs to prevent her transformation into Killer Frost. She informs Caitlin that she requires her expertise for a delicate medical procedure, threatening to end her life if she doesn't succeed. Meanwhile, The Thinker ensnares The Flash in an impenetrable prison designed for speedsters. With time running out, Team Flash is stretched thin, unable to pursue both Caitlin and Barry simultaneously, leaving Iris with the difficult decision of who to rescue first.