The Flash 5×21 Promo “The Girl With The Red Lightning” Season 5 Episode 21 Promo

The Flash 5×21 “The Girl With The Red Lightning” Season 5 Episode 21 Promo – CICADA II MAKES HER MOVE – Team Flash is on high alert after Cicada II (guest star Sarah Carter) threatens to unleash a dangerous virus that would put all meta-humans at risk. Stefan Pleszczynski directed the episode written by Judalina Neira & Thomas Pound (#521). Original airdate 5/7/2019.