Barry and Iris's 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, The Ray, Felicity Smoak, Iris West and Alex Danvers to take on their most formidable villains yet. Earth's mightiest heroes - Green Arrow, Supergirl, The Flash and White Canary - lead their teams into battle to save the world.
Did You Know?
In the DC Universe, Earth-X was a version of Earth where World War II ended with a complete German victory in the year 1968. It was the home of the Freedom Fighters, a team of heroes that led the resistance against the Nazis, and finally overcame them with help from the Justice League and the Justice Society. See more
At 00:52 the arrow that hits the scientist is green, while the Oliver from Earth X carries red arrows in his quiver. That green arrow also did not belong to Earth X's Prometheus(Tommy Merlin) as he carries black arrows in his quiver. See more
[glancing at a sleeping Kara
Aw, man, I wish I could sleep-fly.
The usual opening narration and title card are replaced by a special "Crisis on Earth-X" sequence. See more
Runnin' Home to You
Performed by Melissa Benoist
Written by Benj Pasek
and Justin Paul
Arranged by Daniel James Chan See more