“Well, since we’re fighting aliens, I figured we should get one of our own, right?” Barry said, and with the help of Cisco, who found the right Earth using a Tachyon device, they traveled back to Monday’s Supergirl episode to find Kara.
They brought Kara back to Tuesday’s episode of The Flash. If that wasn’t confusing enough, once at Star Labs, Kara had to learn everyone’s name. Supergirl passed her first test with “flying” colors, quickly getting to know Green Arrow, Spartan, Speedy, White Canary, Firestorm, the Atom, and Heat Wave.
After roll call, the heroes got busy trying to save the president, who had been abducted by aliens, but first they had to deal with the Dominator’s mind-control abilities.
The crossover continues on Wednesday’s episode of Arrow.
The Flash airs Tuesdays at 8 p.m. on CW.
Watch to learn why Supergirl fans were disappointed in Flash crossover: