"Worlds Finest" is the ???th episode of Supergirl. It aired on March 28, 2016. "Worlds Finest" is the eighteenth episode of the first season of Supergirl. It aired on March 28, 2016. It acts as a crossover between Supergirl and The Flash.
Synopsis
Kara gains a new ally when the lightning-fast superhero The Flash 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.[1]
Behind the scenes
- The episode's title is a reference to the World's Finest comics, which would have Superman and Batman crossover.
- The promotional poster released for the episode is a reference to the cover of Superman #199, in which The Flash crossed over to verse Superman.
Gallery
Promotional images
Promos
Supergirl - Official Flash Crossover Promo