Worlds Finest

March 28, 2016
73.3%

Supergirl - S1 - E18

Worlds Finest

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.

Supergirl: Season 1 - 20 Episode s