Everything You Need to Know From the Supergirl/Flash Crossover

Supergirl and The Flash finally met and National City will never be the same. In a crossover of epic proportions, the Girl of Steel and the Scarlet Speedster teamed up to help each other out. Here, you’ll find the most important takeaways of the episode. If you have not seen the episode, I advise stopping here, as there are some key spoilers!

Silver Banshee


After a clearly reluctant trip to the DEO, Supergirl and friends are told there’s no explanation, extraterrestrial or otherwise, for Siobhan’s sudden super screams. One agent simply explains it as a miracle. Suffice it to say, Siobhan isn’t happy and struts off.

During a visit to her aunt, Siobhan learns that these recent developments in her life are a result of the Silver Banshee taking over her body. Evidently, one of the Smythe ancestors stole from a banshee and now their family is cursed. Did anyone else get Holes flashbacks from this? The only way for Siobhan to rid herself of the spirit is to kill the person who wronged her. With Kara Danvers in the crosshairs, Siobhan comes to the conclusion that she’ll need to destroy Cat Grant and Supergirl first.

This of course, leads to teaming up with Livewire because, as Siobhan so eloquently puts, “The enemy of my enemy is my new partner.” Together, they form what Livewire excitedly calls “an evil Taylor Swift Squad.” There’s definitely some bad blood here.

Supergirl and The Flash

"Worlds Finest" -- Kara (Melissa Benoist, left) gains a new ally when the lightning-fast superhero The Flash (Grant Gustin, right) 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, on SUPERGIRL, Monday, March 28 (8:00-9:00 PM, ET/PT) on the CBS Television Network.  Photo: Robert Voets/Warner Bros. Entertainment Inc. © 2016 WBEI. All rights reserved.

Though there are similarities between Earths, common superheroes is not one of them. When they meet, neither Supergirl nor The Flash, a.k.a. Barry Allen, have ever heard of each other. In fact, Supergirl has never heard of any superheroes from CW shows…weird.

Once Barry explains his situation to Team Supergirl, proving the multiverse theory is true and causing Winn to nerd out a whole lot, the four set to work on figuring out how to get Barry home. After some internet searching, Barry realizes that none of his friends or allies are on this Earth. This was most unfortunate for me, as I was hoping Danielle Panabaker would at least make an appearance.

Because this is National City and they fight (mostly) fair, Supergirl and The Flash team up to have even numbers against Livewire and Silver Banshee. In this aspect, Earth-1 and Earth-2 are similar. As Barry notes, “bad guys love abandoned warehouses no matter what earth they’re on.”

Barry has great superhero advice. After Kara explains her run in with the red kryptonite, he tells her to just slow down on trying to win the public’s affection back. He says the solution will work itself out, which it does! This Flash guy is smart, can we keep him?

Sadly, we cannot, as the end of the episode finds him and Kara breaking all rules of physics and sending him back to his own world. Sigh…come back soon Barry!

Kara and James


He likes her. She likes him. Cat Grant uses a cupcake metaphor to tell Kara she needs to make her move. It’s all very frustrating. Cat advises Kara to use the “lighthouse method” which essentially means make James jealous. Cue the arrival of The Flash, who Cat later decides should be called The Blur.

James is most certainly jealous, because who isn’t jealous of Grant Gustin? Of all people, Lucy tells James to go for it, saying he was right about them all along. Barry tells Kara slowing things down is good advice…except when it comes to James. Basically everyone except them knows it’s time for them to get together. Unfortunately, Non has the worst timing possible.



Technically, we still don’t know all the specifics of Non and Astra’s plan, but we have the basic idea now. At the end of the episode, Kara and James (finally) have their moment and shared a kiss. As Kara pulls away she’s met with a blank stare from James, followed by his abrupt exit. As it turns out, Myriad controls the minds of National City’s residents, creating a city of drones for the Kryptonians to control. In the few episodes remaining this season, this is sure to pose some problems.

What did you think of this crossover? Let me know in the comments below!

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