We met Alcock’s Supergirl briefly at the end of Superman, when she showed up to collect her dog Krypto, still a bit hung over from partying on a red-sun planet. She is more jaded than her cousin, having witnessed the destruction of Krypton and the loss of everything and everyone she loved. “He sees the good in everyone and I see the truth,” she says in the teaser.

Kara, aka Supergirl, is turning 23 and declares it will be the best year yet, which is admittedly “not a very high bar to clear.” While she might not be too keen on the prospect, she’s going to be a superhero nonetheless. Per the longline: “When an unexpected and ruthless adversary strikes too close to home, Kara Zor-El, aka Supergirl, reluctantly joins forces with an unlikely companion on an epic, interstellar journey of vengeance and justice.”

In addition to Alcock, the cast includes Matthias Schoenaerts as chief villain Krem of the Yellow Hills; Eve Ridley as Ruthye Marye Knoll, the aforementioned “unlikely companion” who meets and bonds with Supergirl over the course of the film; Ferdinand Kingsley as Ruthye’s father Elias; and David Krumholtz and Emily Beecham as Supergirl’s parents, Zor-El and Alura In-Ze. Jason Momoa also makes an appearance as Lobo, an alien bounty hunter from the planet Czarnia. We catch a brief, blurry glimpse of Momoa’s well-muscled mercenary with the glowing red eyes in the teaser. And of course, our favorite misbehaving pupster Krypto is returning, too; he kicks off the teaser by peeing on a newspaper.

Supergirl hits theaters on June 26, 2026.