Cross-network crossovers are very rare phenomenon in television. Usually, the prevailing theory is that networks don’t want to use characters from other networks because then it encourages viewers to watch something they don’t own. Even The Flash’s upcoming appearance on Supergirl wasn’t a sure thing, as CBS denied the possibility for months.
But it’s almost here. In just seven days, Grant Gustin will guest star on Supergirl as Barry Allan, a.k.a. the Flash! And in the newly released trailer for the episode, the Flash will be sticking around long enough for National City to realize that there’s a new hero in town. The trailer doesn’t shed any light on how the Flash came to visit Supergirl’s world, but it does show off the easy chemistry between the two former Glee stars, Melissa Benoist and Grant Gustin as they play off of each other.
The villains are just afterthoughts here. It’s all about the superhero team up! But the Flash really should be more careful about his secret identity…
Related: The Flash Races Supergirl In New Teaser Video
Here’s CBS’s official description of the episode:
“Kara gains a new ally when the lightning-fast superhero The Flash (Grant Gustin) suddenly appears from an alternate universe and helps Kara battle Siobhan, aka Silver Banshee, and Livewire in exchange for her help in finding a way to return him home.”
Supergirl’s crossover episode will air Monday, March 28 on CBS.
What did you think of the new trailer from the Supergirl and Flash crossover? Let us know in the comment section below!
Photo Credits: Warner Bros. Entertainment Inc
The Flash & Supergirl Crossover Gallery
The Supergirl and Flash Crossover Gallery
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When Barry Met Kara
Kara Danvers and Barry Allen get to know each other out of costume.
Photo Credit: Michael Yarish/Warner Bros. Entertainment Inc.
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Barry Allen
He may be the Flash, but Barry's in no hurry in this pic.
Photo Credit: Michael Yarish/Warner Bros. Entertainment Inc.
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Barry and Kara Bond
Don't get your hopes up shippers. They're from two different worlds...it'll never work out!
Photo Credit: Michael Yarish/Warner Bros. Entertainment Inc.
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Put Your Mask on, Barry!
Seriously, dude. You're worse than Tobey Maguire's Spider-Man. At least his mask was damaged when it came off...all the time.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Barry and Team Supergirl
After Arrow, every hero or heroine has a support team.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Cat Grant
Supergirl's boss is not necessarily her biggest fan.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Jealous Jimmy
It's time for Jimmy Olsen to feel jealous for a change, when Barry Allen forms an instant connection with Kara Danvers.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Lucy Lane Crashes The Party
Sometimes, Lois Lane's sister is the worst.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Lucy Lane
Go home, Lucy!
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Silver Banshee
You've gotta love a villainess who commits to the look.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Silver Banshee 2
The Silver Banshee costume is actually pretty faithful to the character's comic book roots.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Livewire
Livewire is back for more in this episode.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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The Terrible Trio
They're all so pasty that it's hard to tell them apart!
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Supergirl
And why not? It is still her show.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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The Flash
Barry Allen may be the fastest man alive, but Grant Gustin may be the busiest. He's already guest-starred as The Flash on two shows this season that weren't his own!
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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It's Always a Warehouse
Have you ever noticed that a lot of TV superhero fights take place in abandoned warehouses?
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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All Hugs
This is a behind-the-scenes photo, but we're willing to bet this is also how Supergirl and The Flash part.
Photo Credit: Robert Voets/Warner Bros. Entertainment Inc.
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Supergirl and The Flash Crossover Poster
Who is the fastest person alive?
Photo Credit: Warner Bros. Entertainment Inc.
