'The Flash' And 'Supergirl' Crossover Trailer Teases The Inevitable Race Between The Two Heroes

After “The Flash” Season 2 makes its return on Tuesday, the character will run so fast that he’ll make his way to another network and another DC Comics superhero TV show on Sunday, March 28. The Flash (Grant Gustin) will appear on an episode of “Supergirl,” and now fans can see the two powered buddies in action in the episode’s teaser trailer.

As previously reported, the minds behind both “The Flash” and “Supergirl” found a way to let the scarlet speedster join Kara Danvers (Melissa Benoist) on CBS from his own show on the CW. According to the episode’s plot synopsis, Barry Allen (Gustin) will move so fast that he breaches the barrier between alternate universes. When he does, he finds himself in National City alongside Supergirl. She agrees to help him get back to his own version of Earth, but only if he’ll join forces with her to stop villains Siobhan (Italia Ricci) and Livewire (Brit Morgan).

While the crux of the episode will be the bout between the two pairs of superpowered foes, the teaser trailer reveals something even more fun than heroes punching up bad guys. The below trailer plays heavily on the theme that’s been running throughout the teasers for the crossover so far — a race between the two fastest people alive.

Obviously The Flash’s superpower is speed that was given to him in a particle accelerator accident. However, Supergirl also has the gift of super-human speed, as well as a slew of other impressive powers due to her secret identity as a Kryptonian. As a result, it seems as though the two won’t be able to stop begging the question: “Who is faster?” Previously, the crossover was teased with a poster that featured the two characters made to look like an issue of the “Superman” comics. The issue in question saw a highly publicized race between the two heroes, which is apparently exactly what’s in store on “Supergirl” episode 18, titled “Worlds Finest.” While the comic books hold their own answer to this question, the TV universes of either show hold their own canon and continuity, so the race is anyone’s game.

Previously, “The Flash” has had direct crossover events with other CW shows like “Arrow” and “Legends of Tomorrow,” but this is his first time jumping across networks or acknowledgement of the existence of Supergirl, Superman, the fictional city of Metropolis and the slew of other things that come with the CBS series’ world. Luckily, when and if Barry makes it back to his friends at S.T.A.R. Labs, he’ll have left the alternate reality in which his new ally exists behind. This means that “The Flash” fans don’t necessarily need to catch up with the entirety of “Supergirl” to know what’s going on.

Will you be tuning in to “The Flash” and “Supergirl” crossover on Monday? Comment below or tweet your thoughts to @TylerMcCarthy.