The CW has released a new trailer for Crisis on Infinite Earths. This will serve as 2019's big ArrowVerse crossover and follows in the footsteps as last year's Elseworlds, which was rather ambitious. Be that as it may, it appears this little corner of the DC universe has outdone itself this time around, as worlds are going to collide as the fight for the multiverse unfolds. If nothing else, this looks like it's going to be a massive and action-packed adventure.

As we see in the trailer, a villain known as the Anti-Monitor is trying to wipe out existence across the multiverse, leaving the heroes of the ArrowVerse to try and save what they can. This leads to quite a few incredible cameos from throughout DC's history. We see characters from Smallville, 90s DC shows and even Batman voice actor Kevin Conroy playing Bruce Wayne in the flesh for the first time ever. And that's not even the half of it. We've also got Brandon Routh suiting up as Superman again for the first time since Superman Returns and so much more.

RELATED: Bridget Regan Is the ArrowVerse's Poison Ivy in Batwoman Season 3

There are other items of note here. For one, this is the first time that Black Lightning is being brought into the larger universe, which is something fans have been calling for. We also get a tease of Stephen Amell's Oliver Queen being rather heroic, possibly at his own peril. With Arrow ending after this season, there is no guarantee that he makes it out of this thing alive. With a crossover this big, the stakes need to be big and it seems likely that a hero or two will fall before it's all said and done.

Crisis on Infinite Earths is adapted from the famous crossover of the same name. Published in 1985, the crossover went on to become one of the most cherished in the history of DC Comics. The story was written by Marv Wolfman and illustrated by George Perez and centers on a villain named Anti-Monitor, the reverse of The Monitor, who we met during last year's Elseworlds event. The Anti-Monitor aims to destroy all life across the multiverse. His quest sees him come up against many of DC's most famous heroes. The event is notable for including the deaths of both The Flash and Supergirl. Again, big stakes here.

The five-part event spans across Supergirl, Batwoman, The Flash, Arrow and Legends of Tomorrow. Things kick off with Part 1 on Supergirl this Sunday, December 8. Batwoman will keep the ball rolling with Part 2 on Monday, December 9 before The Flash brings us Part 3 on Tuesday, December 10. Fans will then have to wait more than a month for the two-part finale, which arrives on Tuesday, January 14. Part 4 comes to us on Arrow, with Legends of Tomorrow bringing the whole thing to a close for The CW. Be sure to check out the new trailer for yourself.