Poster and Plot Details for SUPERGIRL/THE FLASH Crossover Episode Released

After months of speculation and rumors, CBS’ Supergirl and The CW’s The Flash will finally meet up in an epic crossover episode. The episode will air on CBS on March 28th. And now, the network (via TV Line) has released a promotional poster for the crossover, as well as a plot summary.

In the episode, titled “Worlds Finest,” Flash finds himself in an alternate universe, where he meets Supergirl. Together, they fight two of Kara Zor-El’s enemies. The new poster pays homage to the cover for Superman #199, which depicts a race between the Man of Steel and The Flash.

Check out the plot logline and poster below, and stay tuned for more news as we have it.

Worlds Finest – 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.