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Season 1 - Oct. 26, 2015
Season 2 - Oct. 10, 2016
Season 3 - Oct. 09, 2017
Season 4 - Oct. 13, 2018
Season 5 - Oct. 06, 2019
Season 6 - Mar. 30, 2021

Supergirl Season 1 Episode 18
HD
Overview:
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.