The 2017 Arrowverse crossover "Crisis on Earth-X" resulted in massive ratings boosts for Supergirl, Arrow, The Flash and DC's Legends of Tomorrow, and delivered consequential plot developments, some emotional moments and a lot of action.
The two-night event pitted The CW's superheroes against the evil counterparts of Arrow, Supergirl and The Flash from a parallel world where the Nazis won World War II. Although conquest and the glory of the Fatherland were certainly motivations, the true goal of the invasion was a lot more personal: the (literal) heart of Supergirl.
Now that viewers have been given a little time to breathe, we look back at "Crisis on Earth-X" and highlight the crossover's most bad-ass and crowd-pleasing moments.
The first encounter between the Nazis of Earth-X, led by Dark Flash, Dark Arrow and Overgirl, and the heroes of the Arrowverse takes place at Barry and Iris' wedding. While that's unfortunate for the attendees, it leads to an incredible fight sequence. From Sara Lance and Alex Danvers ripping their dresses to enable more mobility to Barry catching a spray of bullets, there's plenty of bad-ass moments in this five-minute scene.
Perhaps the best moment, though, is when Oliver Queen teaming up with Cisco Ramon to mount an attack against Dark Arrow, his Earth-X doppelganger. Cisco creates a breach that teleports Oliver above Dark Arrow, bow and arrow at the ready. Although the ploy isn't that successful, it's an inventive team-up that demonstrate how well these heroes work together.
Tommy Merlyn Returns
That's right, Colin Donnell reprises his role of Tommy Merlyn for a brief but incredible moment in the second part of "Crisis on Earth-X." It's not the Tommy we remember, however; it's his Earth-X counterpart, who just so happens to be the Prometheus of that parallel world.
That villainous twist is incredibly effective, as it leads Oliver to spill his heart to Tommy after years of grieving the loss of his best friend, and and give a nod to a popular fan theory about Tommy being Prometheus on Earth-1.
New & Familiar Faces
The four-part crossover introduced new characters, such as The Ray, and new twists on existing characters, as with Citizen Cold. Ray Terrill was shown in a concentration camp on Earth-X, where Leonard Snart came to his rescue. The best part is that they're boyfriends (portrayed by openly gay actors Russell Tovey and Wentworth Miller), and no fuss was made about it. The way their relationship was handled is no different from any other Arrowverse romance.
"Crisis on Earth-X" also served as a great way to introduce The Ray in live-action before his animated series, Freedom Fighters: The Ray, debuts this week on CW Seed.