The team is on high alert after Cicada II threatens to unleash a dangerous virus on The Flash. "The Girl With The Red Lightning" is the 21st episode of the show's fifth season.
The meta criminals (Bug-Eyed Bandit, Weather Witch, Rag Doll, and XS) unite and go over the plan one more time before following through with their plan to steal military grade weaponry.
Caitlin and Ralph realize Cicada 2 has stolen Cisco's failed prototypes for the cure in order to use it as a poison against every metahuman in Central City.