Watch the preview below for the next episode of Supergirl, "Fort Rozz," featuring the Legion of Super Heroes.
Supergirl airs Mondays at 8pm EST starring Melissa Benoist.
SUPERGIRL TEAMS UP WITH SATURN GIRL, LIVEWIRE AND PSI â€“ As Reign (Odette Annable) continues to terrorize the city, Supergirl (Melissa Benoist) teams up with Saturn Girl (guest star Amy Jackson), and the two recruit Supergirlâ€™s former enemies, Livewire (guest star Brit Morgan) and Psi (guest star Yael Grobglas), to form a team for a mission to Fort Rozz to recover a prisoner who has information on how to defeat Reign once and for all. Meanwhile, Alex (Chyler Leigh) babysits Ruby (guest star Emma Tremblay). Gregory Smith directed the episode written by Gabriel Llanas & Anna Musky-Goldwyn (#311). Original airdate 1/22/18.