: She discovers that Killer Frost did not originate from the particle accelerator but was a result of experiments performed by her father, Thomas Snow.
: Sherloque Wells , a French detective from Earth-221, joins Team Flash to help hunt Cicada and eventually uncovers Nora’s secret. Key Character Arcs The Flash - Season 5
The Flash Season 5 Episode 8 Review: What's Past is Prologue : She discovers that Killer Frost did not
: Struggling with the burden of his powers, Cisco eventually chooses to take a meta-human cure to live a normal life. : It is eventually revealed that Nora is
: It is eventually revealed that Nora is secretly working with Eobard Thawne (Reverse-Flash) in the future, who is manipulating her to ensure his own escape from execution.
: After traveling back from 2049, Nora West-Allen reveals she has changed the timeline, leading to the early arrival of a new, meta-human-hunting villain.
: The primary antagonist is Cicada (Orlin Dwyer), a man fueled by rage who uses a lightning-shaped dagger to dampen meta-human powers.