It’s extremely lit for superhero fans who have been tuned into The Flash on The CW and Supergirl on CBS. A crossover of epic proportions is coming on next week’s 18th episode of the freshman season of Supergirl when Barry Allen comes visits National City and aids Kara Zor-El.
The episode is called “World’s Finest”. Here is the synopsis:
“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.”
From the trailer we see the two heroes racing, which is especially considering The Flash is known historically to have raced Superman on different occasions (can’t wait to see how/if Barry addresses the notion of Superman in the episode). Melissa Benoist stars as Supergirl and Grant Gustin as The Flash.
The Flash speeds onto Supergirl on Monday, March 28 at 8 PM EST on CBS.