It's a race against time to save Krypto in Supergirl trailer

Warner Bros. released the first full trailer for Supergirl ahead of its summer release.

The trailer shows Kara Zor-El as a 23-year-old Supergirl who joins an unlikely companion after a nearby attack.

The cast includes Milly Alcock, Matthias Schoenaerts as Krem, Eve Ridley, Ferdinand Kingsley, David Krumholtz, Emily Beecham, and a brief appearance by Jason Momoa as Lobo.