Emma Tremblay

Kara handles the loss of Mon-El by focusing on being Supergirl and concentrating on a mysterious new threat. Alex reveals a secret to Maggie, a citizen of National City has a connection to Kara, and Lena takes a bold move.

Kara looks into an alien ship that crash lands underwater beneath National City. Hank tries to bond with his father. Samantha seeks answers from her estranged mother.

Kara investigates a new group with a mysterious connection to Supergirl, Samantha feels like she's letting Ruby down and J'onn confesses an old secret.

Supergirl teams up with Saturn Girl, Livewire and Psi to recover a prisoner who has information on how to defeat Reign.

Kara makes a decision with the potential to change her life forever, and J'onn learns that Special DEO-caliber guns have made it to the streets of National City.

Supergirl and Alex work together to keep Ruby safe when she becomes Reign's new target. Supergirl and J'onn seek advice from Sam's mum on how to stop Reign.