Crisis on Infinite Earthswill be theArrowverses biggest crossover yet.
And no, we arent being hyperbolic.
That comes directly from the Many Powers That Be.

Frank Ockenfels 3/The CW; Everett Collection; The CW (2); Katie Yu/The CW
Well continue to update this as we find out more.
When and where?
Whos in it?

Carlos Serrao for EW
Beyond that, it remains to be seen who else fromLegendswill join in the crossover madness.
And that of course didnt happen.
Im just very honored to be able to do this one last time.

Katie Yu/The CW
Black Lightning himself Cress Williams appears inThe FlashandLegendshours.
Alas,Michael Rosenbaum declinedto throw on the bald cap once more and appear as Lex Luthor.
Furthermore,LegendsJohnathon Schaech will return as Jonah Hex.

Katie Yu/The CW
Birds of Preys Ashley Scott has been tapped toreprise her Huntress role in the crossover.
How did we get here?
Crisis on Infinite Earths has arguably been in the works sinceThe Flashpremiered in 2014. whenever the Monitor came for him.

Dean Buscher/The CW
How will the each show build to it this fall?
Of the five Arrowverse shows, Crisis will loom rather large overArrowandThe Flash.
So the theme really is coming to terms, acceptance.
This season is really divided up in a way that the episodes before the crossover are pre-Crisis episodes.
Then the back half of the season is all about dealing with the fallout from the events of Crisis.
What does Crisis mean forLegends?
BatwomanandSupergirlpremiere Sunday, Oct. 6, at 8 p.m.
ET and 9 p.m.
ET; andArrows final season premieres Tuesday, Oct. 15, at 9 p.m.
ET; all on the CW.
This post has been updated with additional details.