Supergirl's Melissa Benoist Talks Invasion Crossover

This week, a war of the worlds is coming to The CW. The network will kick-off its annual superhero crossover extravaganza on Monday when Supergirl airs, and the four-night event promises to leave fans stunned. Melissa Benoist's Supergirl will team up with the likes of Green Arrow, Flash, and White Canary to help stop a violent alien invasion - but the actress doesn't seem too worried about the shtick.

After all, the superhero squad has got each others' backs.

The actress took time to talk about the Invasion! crossover special in a behind-the-scenes interview, and Benoist said the whole thing was very exciting. "It's really exciting to have everyone in one place. I think we're all really proud of our shows," she said. "It's a weird feeling to be in a room with bunch of people wearing superhero outfits and it's not like a costume party. It was a cool feeling. And it was basically everyone - everyone, there's so many people."

The actress then continued, saying, "I can't wait for people to see it, but I also was excited to fly in front of everyone. There were a few really awkward attempts, so I did kind of fall on my butt a little bit in front of everyone. But it was a fun; It was a supportive atmosphere."

If you watch the video, you can see how light-hearted the atmosphere was on set. Benoist can be seen joking around with The Flash's Grant Gustin, and the actress even does a little jig mid-air while her stunt harness keeps her afloat.

The Invasion! crossover is slated to begin tomorrow with Supergirl. "Medusa" will kick off the storyline and put Barry Allen back in contact with Kara Zor-El, but this time has has brought his friend Cisco with him. If you want to check out the synopsis for tomorrow night's episode, then you can read it below:

"A NIGHT OF CONFESSIONS; THE EPIC SUPERHERO CROSSOVER KICKS OFF TONIGHT — Eliza (guest star Helen Slater) comes to town to celebrate Thanksgiving with her daughters. Alex (Chyler Leigh) decides it's time to come out to her mother; Kara (Melisa Benoist) is shocked when Eliza suggests Mon-El (Chris Wood) has feelings for her, and Winn (Jeremy Jordan) and James (Mehcad Brooks) consider telling Kara the truth about the Guardian. Meanwhile, CADMUS unleashes a virus that instantly kills any alien in the vicinity so Kara enlists an unexpected ally – Lena Luthor (Katie McGrath).

The epic superhero crossover kicks off tonight when Barry Allen (guest star Grant Gustin) and Cisco Ramon (guest star Carlos Valdes) seek Kara's help with an alien invasion on their Earth."

NEXT: The Flash, Arrow, Supergirl, Legends of Tomorrow Crossover Trailer / First Look At The Dominators / Invasion! Crossover Promo Photos / Potential The Flash Spoiler Spotted On Set / Will Joe West Die During The Invasion! Crossover?

Supergirl airs Mondays at 8 p.m. ET/PT; The Flash on Tuesdays at the same time; Arrow on Wednesdays and DC's Legends of Tomorrow on Thursdays. All four series air on The CW. The "Invasion!" crossover will air beginning November 28.