Season Five

Crisis on Infinite Earths, Part 1

Episode #: 509
U.S. Air Date: 12.08.2019
Supergirl (509) - Crisis on Infinite Earths, Part 1
Story By: Robert Rovner & Marc Guggenheim Teleplay By: Derek Simon & Jay Faerber
Directed By:
Jesse Warn
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As a crisis erupts across the multiverse, the Monitor gathers Supergirl, Green Arrow and his daughter Mia, Batwoman, White Canary and the Atom, the Flash and other heroes to make a stand on Earth-38 -- where a massive anti-matter wave threatens to consume Kara's Earth.
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THE KICKOFF TO THE EPIC TELEVISON CROSSOVER EVENT, CRISIS ON INFINITE EARTHS

The Monitor (guest star LaMonica Garrett) sends Harbinger (guest star Audrey Marie Anderson) to gather the worlds' greatest heroes - Supergirl (Melissa Benoist), The Flash (guest star Grant Gustin), Green Arrow (guest star Stephen Amell), Batwoman (guest star Ruby Rose), White Canary (guest star Caity Lotz), The Atom (guest star Brandon Routh) 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 (David Harewood) and Alex (Chyler Leigh) recruit Lena (Katie McGrath) to help them find a way to save the people of Earth-38.

Jesse Warn directed the episode with story by Robert Rovner & Marc Guggenheim and teleplay by Derek Simon & Jay Faerber (#509).