Killer Frost

"What are you waiting for? What's the big deal? Come on. Live up to your name, Killer Frost. I want to see some killing. You want to be the villain? This is what they do. They kill their friends, because nothing matters to them anymore, right? Right? Come on. Kill me, Caitlin. You can't do it. You can't, because underneath all that cold, you're still you."

- Barry Allen to Caitlin Snow

Synopsis
Caitlin uses her powers to save Barry but as her mother predicted, the effort unleashes her inner Killer Frost. Killer Frost goes on a rampage looking for Dr. Alchemy, kidnapping Julian and battling both The Flash and Vibe. Meanwhile, Joe and H.R. have a heart to heart talk.

Protagonists

 * Team Flash
 * The Flash (Barry Allen)
 * Iris West
 * Killer Frost (Caitlin Snow)
 * Vibe (Cisco Ramon)
 * Wally West
 * H.R. Wells
 * Joe West
 * Central City Police Department
 * Julian Albert
 * Tom Patterson

Antagonists

 * Killer Frost (Caitlin Snow)
 * Captain Cold
 * Savitar
 * Cult of Savitar
 * Acolyte
 * Craig
 * Alchemy (Julian Albert)

Other Characters

 * Anne
 * Carla Tannhauser
 * Daenerys Targaryen
 * Dante Ramon
 * David Singh
 * Eddie Thawne
 * Francine West
 * God
 * Jay Garrick
 * Nora Allen
 * Ronnie Raymond
 * Savitar (Hindu God)
 * Caitlin Snow's Father

Teams and Organizations

 * Cult of Savitar
 * Central City Hospital
 * Central City Police Department
 * County General
 * Ledded Goh
 * S.T.A.R. Labs
 * Team Flash

Events

 * Flashpoint
 * Particle Accelerator Explosion
 * Conquering of the Speed Force
 * Search for Alchemy

Species

 * Deities
 * Humans (Earth-1)
 * Humans (Earth-19)
 * Metahumans
 * Time Remnants

Objects and Concepts

 * Alchemy Mask
 * Breaches
 * CFL Quark Matter
 * Cisco-ed Treadmill
 * Philosopher's Stone
 * Power-Dampening Cuffs
 * Power-Dampeners
 * Reverb Goggles
 * S.T.A.R. Labs Particle Accelerator
 * Sally the Satellite
 * Savitar Armor
 * Strange Metal
 * The Flash Suit
 * Vibe Gauntlets
 * Vibes

Locations

 * Earth-1
 * Earth
 * North America
 * United States of America
 * Missouri
 * Central City
 * 1104 Truman Place
 * 16 Hawthorne Avenue
 * 6th and Fairmont
 * Central City Hospital
 * City Center
 * Central City Police Precinct
 * County General
 * Gleason
 * Ledded Goh Frozen Food Warehouse
 * University Town
 * S.T.A.R. Labs Central City Facility
 * Pipeline
 * Williamson
 * Alchemy's Lair
 * Keystone City
 * Francine West's Residence
 * Earth-19
 * Earth
 * Hell
 * Speed Force

Goofs

 * Despite Joe West informing that Julian Albert was admitted to County General for his injuries, he was later seen at Central City Hospital, where he was visited by Barry Allen.