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Crisis on Earth-X, Part 4 

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


Gregory Smith


Greg Berlanti (developed by), Marc Guggenheim (developed by) | 6 more credits »




Episode cast overview, first billed only:
Victor Garber ... Dr. Martin Stein
Brandon Routh ... Ray Palmer / The Atom
Caity Lotz ... Sara Lance / White Canary
Franz Drameh ... Jefferson Jackson / Firestorm
Maisie Richardson-Sellers ... Amaya Jiwe / Vixen
Amy Louise Pemberton ... Gideon (voice)
Tala Ashe ... Zari Tomaz
Nick Zano ... Nate Heywood / Steel
Dominic Purcell ... Mick Rory
Stephen Amell ... Oliver Queen / Green Arrow / Black Arrow
David Ramsey ... John Diggle
Emily Bett Rickards ... Felicity Smoak
Tom Cavanagh ... Dr. Harry Wells / Eobard Thawne / Reverse-Flash
Chyler Leigh ... Alex Danvers
Candice Patton ... Iris West


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 »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


Other than a couple of cameos, Russell Tovey is technically the only real guest star in the entire crossover. The remaining cast members have regular or recurring roles in one of the Arrowverse shows. See more »


Steel catches Supergirl when she falls from orbit, producing an explosive impact effect. While the ground directly beneath his feet is bare earth (as opposed to the grass around him) and there's a ring of dirt around them, the area where Steel is standing on is level with the rest of the ground and Steel's feet haven't sunk at all beneath the surface. At a minimum, his legs should have been driven into the ground by the force of the impact. See more »


Ray Palmer: Look, I know I'm late to the party, but why have Nazi doppelgangers taken over S.T.A.R. Labs?
Felicity Smoak: They're from Earth-X. They hate everybody. They want to steal Kara's heart, and they have this giant robot.
Ray Palmer: Oh, I've actually fought one of those before. Little known fact the suit doesn't just shrink...
[Nazi soldiers appear behind Ray]
Felicity Smoak: RAY!
[Ray's hand enlarges and swats the Nazi soldiers into a wall]
Ray Palmer: It embiggens.
See more »

Crazy Credits

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


References Star Raiders (1979) See more »

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User Reviews

I wish they'd stop doing these bloody crossovers!
25 January 2019 | by Mex5150See all my reviews

Another episode that makes zero sense if you don't have the time or inclination to watch half a dozen or so other shows as well as Legends. I'm done with the series now.

7 of 14 people found this review helpful.  Was this review helpful to you? | Report this
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