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Episode Summary: THE EPIC FOUR-WAY CROSSOVER WITH “ARROW,” “SUPERGIRL,” “THE FLASH” AND “DC’S LEGENDS OF TOMORROW” BEGINS - 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. Larry Teng directed the episode with story by Andrew Kreisberg & Marc Guggenheim and teleplay by Robert Rovner & Jessica Queller (#308). Original airdate 11/27/2017.
Videos / sneak peeks / Spoilers
Official Extended trailerWeapon Extended Trailer DCTV Crisis on Earth-X Crossover Cast TeaserDCTV Crisis on Earth-X Crossover Cast Tease 2 Chyler Leigh Says Alex is "All Over" the 'Crisis on Earth-X' CrossoverMelissa Benoist On Her Role in the 'Arrowverse' CrossoverFormer Superhero Actor Makes Surprise Appearance in "Crisis on Earth-X Part 1"'Crisis on Earth-X' is The CW's First True Comic Book Event