Film
Worlds Finest
2016 · 43 min · ★ 9 · Dir. Marc Guggenheim
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. Special Episode: Supergirl s01e18
