The Flash (2014– )
20 user 14 critic

Crisis on Earth-X, Part 3 

The gang comes together for Barry and Iris's wedding, but the ceremony is crashed by villains from Earth-X.


Dermott Downs (as Dermott Daniel Downs)


Greg Berlanti (developed by), Andrew Kreisberg (developed by) | 4 more credits »

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Episode cast overview, first billed only:
Grant Gustin ... Barry Allen / The Flash
Candice Patton ... Iris West
Danielle Panabaker ... Caitlin Snow / Killer Frost
Carlos Valdes ... Cisco Ramon / Vibe
Tom Cavanagh ... Dr. Harry Wells / Eobard Thawne / Reverse Flash
Jesse L. Martin ... Joe West (credit only)
Stephen Amell ... Oliver Queen / Green Arrow / Dark Arrow
Victor Garber ... Dr. Martin Stein
Emily Bett Rickards ... Felicity Smoak
Caity Lotz ... Sara Lance / White Canary
Chyler Leigh ... Alex Danvers
Franz Drameh ... Jefferson Jackson / Firestorm
Paul Blackthorne ... Quentin Lance
Jeremy Jordan ... Winn Schott
Juliana Harkavy ... Dinah Drake / Black Canary


Barry (guest star Grant Gustin) and Iris's (guest star Candice Patton) wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of the superheroes band together with help from their super friends like Citizen Cold (guest star Wentworth Miller), The Ray (guest star Russell Tovey), Felicity Smoak (guest star Emily Bett Rickards), Iris West and Alex Danvers (Chyler Leigh) to take on their most formidable villains yet. Earth's mightiest heroes - Green Arrow (guest star Stephen Amell), Supergirl (Melissa Benoist), The Flash (guest star Grant Gustin) and White Canary (guest star Caity Lotz) - lead their teams into battle to save the world.

Plot Summary | Add Synopsis


TV-14 | See all certifications »

Parents Guide:

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Release Date:

28 November 2017 (USA) See more »

Also Known As:

Crisis on Earth-X, Part 3 See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


This is the first episode in which Jesse L. Martin (Joe West) does not appear. See more »


Overgirl tells Supergirl that she was fortunate to have her space capsule land in the Fatherland. At the time her capsule landed (decades after the Axis won), the entire WORLD would have been considered "the Fatherland." See more »


Leo Snart: In ten minutes, Red Tornado's gonna bring down this entire facility, and there's nothing we can do to stop that robot.
Oliver Queen: Then we need to reopen the gateway before that happens. Barry, Ray...
Barry Allen: We know. Stop a flying robot somehow.
Oliver Queen: Good. The rest of us will open the breach.
Leo Snart: That's the whole plan?
Barry Allen: Well, as a Snart we know use to say, "Make a plan. Execute the plan. Expect the plan to go off the rails. Throw away the plan."
Leo Snart: Wow. That is... that is terrible advice. I always have a plan, down to the ...
See more »

Crazy Credits

The usual opening narration and title card are replaced by a special "Crisis on Earth-X" sequence. See more »


References Arrow (2012) See more »

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User Reviews

If you only watch Flash - you will be fairly lost
14 December 2017 | by stdrahcirSee all my reviews

From the other reviews I'm reading this episode is a crossover of other shows. I have not really watched Legends of Tomorrow or Supergirl. Not really interested either (not saying they are bad... just not interested).

I have watched some of Arrow (maybe 2 seasons), but couldn't really get into it.

The Flash I have always enjoyed watching and seen every Season and Episode. In the previous episode of The Flash they gave no hints or insinuations of this episode being like this. You basically leave off with them talking about their marriage and Barry Allen finally getting his confirmation of that Devoe guy being the new villain "The Thinker".

As soon as I start watching this episode, I am lost as heck. It starts with The Flash and various others stuck on this other "Earth".

I don't know what the writers were thinking, but this episode really confused their direction now with this Season. I guess I will have to continue watching to see how they tie it together... if they do.

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