"Okay, so, Jay, how exactly do you know all of this?"
"Where I came from, I was a speedster like you. They called me The Flash."
Barry Allen and Jay Garrick
"Flash of Two Worlds" is the second episode of the second season of The Flash, and the twenty-fifth episode overall. It aired on October 13, 2015.


Jay Garrick, a mysterious man from Earth-2, appears at S.T.A.R. 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.[src]



Special guest star

Guest starring






  • The episode is named after the iconic story of the same name published in September 1961, featuring the first crossover between the Barry Allen and Jay Garrick iterations of The Flash.
    • After Sand Demon is defeated, Patty Spivot calls for the Flash. Both Barry and Jay say, "I'm coming" and run towards her with a brick pillar in the middle of them, re-creating the cover of the comic.
  • Joe contacts his colleague, "Jimmy", to corroborate Eddie Slick's alibi that he was in Blackgate Penitentiary at the time of the particle accelerator explosion. Given that Blackgate is traditionally located in Gotham City, one would assume "Jimmy" is a reference to Commissioner James Gordon of the Batman mythos.
  • Stein suggests that on Earth-2, Joe West's doppelgänger might be a Nobel Prize winning physicist like his comic counterpart, Ira West, Iris' adoptive father.
  • Cisco says there are 52 dimensional breaches, likely a reference to the 52 parallel Earths in DC Comics which are part of the New 52 continuity.
  • A fire truck appears in this episode with the number 52 on the side. This is another reference to the New 52.
  • Cisco and Caitlin watch the TV where Oliver Queen broadcasts his new identity as the Green Arrow to Star City, which took place at the end of "Green Arrow"​.
  • The Woodrue greenhouse facility where Patty is held captive could be a reference to Dr. Jason Woodrue, a botanist in the DC comics who is responsible for the creation of Poison Ivy and later becomes the supervillain Floronic Man.


  • As a detective, Joe would not have the authority to promote Patty, a fellow police officer. This must be accomplished by a chief or captain (and possibly not without achievement of a specific goal by the officer in question, depending on the police force and its rules).


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