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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.
Episodes
1Pilot 2Stronger Together 3Fight or Flight 4Livewire 5How Does She Do It? 6Red Faced 7Human for a Day 8Hostile Takeover 9Blood Bonds 10Childish Things 11Strange Visitor from Another Planet 12Bizarro 13For The Girl Who Has Everything 14Truth, Justice and the American Way 15Solitude 16Falling 17Manhunter 18Worlds Finest 19Myriad 20Better Angels