The CW reveals episode synopses for Crisis on Infinite Earths crossover

Crisis on Infinite Earths is coming, the enormous crossover event that will dominate the Arrowverse in just a few weeks. Now, finally, we’re getting some concrete details, as the CW releases synopses for the first three episodes in the crossover, according to TV Line.

These episodes will air from Sunday, December 8 through Tuesday, December 10. Check out the descriptions:

Supergirl, “Crisis on Infinite Earths: Part One”

Sunday, Dec. 8 at 8/7c

"The Monitor (guest star LaMonica Garrett) sends Harbinger (guest star Audrey Marie Anderson) to gather the worlds’ greatest heroes – Supergirl, The Flash, Green Arrow, Batwoman, White Canary, The Atom and Superman (guest star Tyler Hoechlin) – in preparation for the impending Crisis.  With their worlds in imminent danger, the superheroes suit up for battle while J’onn and Alex recruit Lena to help them find a way to save the people of Earth-38."

Batwoman, “Crisis on Infinite Earths: Part Two”

Monday, Dec. 9 at 8/7c

"The group uses Ray’s invention to track new recruits to help save the universe. The Monitor sends Iris, Clark and Lois (guest star Elizabeth Tulloch) in search of a mysterious Kryptonian, while Kate and Kara head out to find Bruce Wayne (guest star Kevin Conroy). In addition, Mia challenges Sara, Rory discovers a hidden talent, and Lex Luthor (guest star Jon Cryer) returns."

Ah, here’s where the crossovers to superhero shows past really starts, with Kevin Conroy — the voice of Batman on Batman: The Animated Series — making his first live-action appearance as the character. Also, the “mysterious Kyptonian” is very likely Tom Welling reprising his role as Clark Kent from Smallville.

The Flash, “Crisis on Infinite Earths: Part Three”

Tuesday, Dec. 10 at 8/7c

"Pariah (The Flash‘s Tom Cavanagh) enlists Black Lightning (guest star Cress Williams) to help stop the Anti-Monitor (guest star LaMonica Garrett) after Flash-90 (guest star John Wesley Shipp) shares what he learned from his battle in “Elseworlds.”  With the help of Black Lightning, Barry, Cisco and Killer Frost come up with a plan that could save them all.  Meanwhile, Iris has a heart-to-heart with Ryan Choi (Legends of Tomorrow newcomer Osric Chau), while Oliver and Diggle return to an old, familiar stomping ground."

Black Lightening finally gets inducted into the Arrowverse! It’s about time.

The other two episodes in the crossover event — on Arrow and DC’s Legends of Tomorrow, will air back to back in the new year on Tuesday, January 14.

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And with that, the countdown to Crisis on Infinite Earths begins!

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h/t SYFY Wire