Team Flash is on high alert after Cicada II threatens to unleash a dangerous virus that would put all meta-humans at risk.
Barry faces off with his oldest, and most formidable nemesis, Reverse Flash.
After discovering that Nora is working with Thawne, Barry and Iris disagree about how to handle their daughter in the wake of this shocking news. Team Flash isn’t sure they…
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 and the team go after the Mist, who possesses toxic gas powers, and they reflect on the night Caitlin’s fiancĂ© died. Meanwhile, Henry gets a long-awaited visit from Joe,…
Oliver, Diggle and Felicity disagree with Dinah, Curtis and Rene on how to handle Black Siren. The two teams face off and a fight ensues.