Barry and Iris will get ready to tie the knot on the 2017 DCTV crossover event which will bring the characters of The Flash, Arrow, DC's Legends of Tomorrow and Supergirl together for the momentous occasion.
However, things will be considerably different vs. last year's big crossover extravaganza which found the team going up against the craziest aliens in the history of aliens.
This time around, the villains will be villainous versions of the characters. An evil Flash, Nazi Supergirl, and Arrow will be thrown in for good measure.
The good thing about this is that the evil characters can fool the other characters into a false sense of security, but that will mean dressing the part of the real character.
We already know that Earth-X is an alternate universe in which the Nazis won World War II, so things will undoubtedly be different in that version of the world.
The CW recently dropped a post for the two-night event.
It teases the characters from all the shows we can expect to show up for fun.
Have a look at the full teaser below and join us in the comments with your thoughts on it.