Emma Tremblay

Kara deals with the loss of Mon-El by focusing her energy on being Supergirl and concentrating on a mysterious new threat. Alex confesses a secret to Maggie, a citizen of National City has a mysterious connection to Kara, and Lena makes a bold move.

J'onn fesses up to an old secret. Kara investigates the leader of a new and secretive group, who has a rather strange connection to Supergirl.

Kara investigates when an alien ship crash lands deep underwater beneath National City. Hank attempts to bond with his father. Samantha looks to her estranged mother for answers.

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

Kara's caught in a conundrum as she considers a major life change. Meanwhile, J'onn's shocked to learn DEO-calibre guns have hit National City's streets.

Tanya flees Coville's cult and gives Supergirl a journal that could be key to saving Sam. Someone threatens to expose Guardian's identity.