Flash of Two Worlds

"Must be my lucky day. Zoom sent me here to kill you. Now I get to kill The Flash from two worlds before I go home."

- Eddie Slick to The Flash of two worlds

Synopsis
Jay Garrick, a mysterious man from Earth-2, appears at STAR Labs with a dire warning about an evil speedster named Zoom, who is set on destroying The Flash. Barry and the team must decide if they can trust this stranger even as they face yet another powerful meta-human. Meanwhile, Joe must deal with a determined officer named Patty Spivot who wants to join his meta-human task force.

Main Characters

 * Team Flash
 * The Flash (Jay Garrick)
 * The Flash (Barry Allen)
 * Caitlin Snow
 * Cisco Ramon
 * Joe West
 * Martin Stein
 * Iris West
 * Patty Spivot
 * Francine West
 * Harrison Wells

Villains

 * Zoom's Gang
 * Atom-Smasher (Al Rothstein)
 * Zoom
 * Sand Demon (Eddie Slick)
 * Harrison Wells (Eobard Thawne)
 * Eddie Slick
 * Mark Mardon
 * Clyde Mardon

Other Characters

 * Al Rothstein
 * Joe West
 * Barry Allen
 * David Singh
 * Eddie Thawne
 * Fred Chyre
 * Jimmy
 * Sphinx
 * Bridgekeeper
 * Green Arrow
 * Ronnie Raymond
 * Zeus
 * Nora Allen
 * Jay Garrick's Father
 * Mr. Spivot

Teams and Organizations

 * STAR Labs
 * Team Flash
 * Hudson Nuclear Plant
 * Nobel Prize
 * CCPD
 * Anti-Metahuman Task Force
 * Hudson University
 * CCFD
 * Zoom's Gang
 * Iron Heights
 * Blackgate Penitentiary
 * Channel 52
 * Woodrue Grow House
 * Unnamed Shoe Shop
 * Fairfield Bank
 * STAR Labs (Earth-2)

Species

 * Metahumans (Earth-2)
 * Humans (Earth-2)
 * Metahumans
 * Time Remnants
 * Humans
 * Cats
 * A.I. (Earth-2)

Objects

 * The Flash Suit
 * Breaches
 * CFL Quark Matter
 * The Flash Suit (Earth-2)
 * Helmet
 * Zoom Suit
 * Dark Matter (Earth-2)
 * Flash Day
 * Cisco-ed Treadmill
 * STAR Labs Satellite
 * Vibes
 * Holy Grail
 * Green Arrow Suit
 * Concussive Bombs

Locations

 * Earth-1
 * Earth
 * United States of America
 * Missouri
 * Central City
 * STAR Labs Central City Facility
 * Pipeline
 * Hudson Nuclear Plant
 * Central City Police Precinct
 * Hudson University
 * Station 33
 * Woodrue Grow House
 * Chesterfield
 * Unnamed Shoe Shop
 * Fairfield Bank
 * Iron Heights
 * Blackgate Penitentiary
 * Washington
 * Star City
 * Earth-2
 * Earth
 * United States of America
 * Central City
 * Jay Garrick's Lab
 * STAR Labs Central City Facility
 * Speed Force

Trivia

 * The scene where Patty asks for The Flash and two Flashes walking towards her is a recreation of the comic issue of the same name, "Flash of Two Worlds".
 * A parallel poster of the comic cover and the scene was later officially released.