Behind the Scenes of the Arrowverse Crossover 'Crisis on Infinite Earths' (PHOTOS)

Meredith Jacobs

A Crisis is coming to the Arrowverse — and it's going to take quite a few superheroes (including familiar faces from past series) to stop it.

And it's not just those from ArrowThe FlashDC's Legends of TomorrowSupergirlBatwoman, and Black Lightning who will be stopping by to help. Among the special guests appearing are Smallville's Tom Welling (Clark Kent) and Erica Durance (Lois Lane).

First Look at Brandon Routh's Superman Suit in 'Crisis' Crossover (PHOTO)

First Look at Brandon Routh's Superman Suit in 'Crisis' Crossover (PHOTO)

The former Superman is suiting up again as an older Superman. Got that?

The actors have begun posting photos from the sets of the five-part event, and you can click through the gallery above for a sneak peek.

Crisis on Infinite Earths Arrowverse Crossover, December 2019 and January 2020, The CW