Supergirl trailer reveals Argo City under dome during Krypton’s destruction, not Kandor as fans speculated.
Trailer Breakdown
The first Supergirl (2026) trailer shows a city shielded by an energy dome amid Krypton’s apocalypse, sparking Brainiac and Kandor theories. DCU’s take draws from Supergirl: Woman of Tomorrow comic, where Kara Zor-El grows up in Argo City, saved by her father Zor-El’s shield.
Comic Origins Explained
In the source material, Argo survives Krypton’s core instability while the planet explodes, but radiation slowly kills inhabitants. Kara watches loved ones perish before Zor-El launches her to Earth in a ship mirroring Jor-El’s design for Superman, marking her first detailed live-action backstory.
DCU Context
Unlike prior Superman-focused glimpses of Jor-El and Lara, this debuts full DCU Krypton visuals. The chaotic, vengeful Supergirl contrasts Superman’s hope, with the film hitting theaters June 26, 2026.