'Crisis On Earth-X': 'Are You Ready?' Teaser Released

This year's Arrowverse crossover event kicks off tomorrow night and The CW asks 'are you ready' in [...]

This year's Arrowverse crossover event kicks off tomorrow night and The CW asks "are you ready" in the latest teaser.

Posted on the official Supergirl Twitter account, the short promo teases some of the action while Caity Lotz (Sara Lance/White Canary,) Danielle Panabaker (Caitlin Snow/Killer Frost,) and Candice Patton (Iris West) explain that the event is "two earths, two nights, too many heroes to count." You can check it out below.

In "Crisis on Earth-X" invaders from Earth-X, the previously-unknown world where Nazis won World War II, arrive at Barry Allen (Grant Gustin) and Iris West's wedding. While the heroes of Supergirl, The Flash, Legends of Tomorrow, and Arrow are formidable enough opponents that they could take down the Nazi invaders, as we've seen teased in other promos, those invaders have a doomsday weapon to contend with. And those invaders? They happen to be evil versions of the Arrowverse heroes, but Earth-X isn't all Nazi villains. We'll meet some of that broken world's heroes, most notably The Ray and Citizen Cold, during the crossover as well.

Crisis on Earth-X will kick off tomorrow night on Supergirl, but don't expect a segmented, episodic crossover like last year's "Invasion!" This year's four show event is more of a continuous movie-like experience with the story and action flowing across all characters instead of focusing on the individual teams. The event is shaping up to be a truly epic event -- one with potentially far-reaching impact for all the heroes involved.

"Crisis on Earth-X" is a four-hour event that will air on November 27 and 28 beginning at 8 p.m. and running for two hours each day; Supergirl (8 p.m. Monday), The Flash (8 p.m. Tuesday) and Legends of Tomorrow (9 p.m. Tuesday) will remain in their normal time slots but Arrow will move from Thursday to a 9 p.m. Monday placement for the week.

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