The long-awaited Supergirl episode ‘World’s Finest’, that will see the Girl of Steel team up with Grant Gustin’s The Flash, will finally arrive next week. In anticipation, Variety has released a bunch of behind-the-scenes images, plus some more stills from the episode. View them below. But, first, here’s the official 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..

 

 

‘World’s Finest’ airs on CBS in the US on Monday 28th March.

 

Images via Variety