Supergirl, The Flash, Green Arrow and Superman face the battle of their lives.
Oliver and Barry head to Gotham City with Supergirl.
Nia has a powerful dream about Agent Liberty.
Supergirl and Manchester Black chase a lead on Agent Liberty’s location.
Kara is feeling down after her televised debate with Ben Lockwood.
Colonel Haley makes a surprising decision regarding Supergirl.
When Supergirl needs help, Alex asks Lena and Brainiac to team up.
The back story of the villainous Agent Liberty is revealed.
A shocking revelation causes chaos in National City.
Kara welcomes a new cub reporter to CatCo.
The superhero drama delivers its strongest season yet.
We look ahead to the next season of the hit CW series.