That… was… awesome!
Supergirl Season 1 Episode 18 was not your average installment of this fun CBS drama, for one handsome and speedy reason: The Flash showed up!
Indeed, after weeks of promotion and anticipation, Grant Gustin crossed over from The CW for a very special hour, as The Flash arrived in National City from an alternate universe.
This beloved superhero proceeded to team up with Supergirl in order to battle those pesky evildoers Livewire and Silver Banshee, in exchange for Supergirl’s help finding him a way to return home.
How did the heroes interact? Was this episode everything you hoped it would be and more?
Use the above video to watch Supergirl online and find out now!