Kara Zor-El has always lived in the shadow of her famous cousin — but when a ruthless enemy strikes the people she loves most, Supergirl is forced to step into the light. Teaming with an unlikely ally, she launches across the galaxy on a mission where the line between vengeance and justice blurs with every lightyear traveled. Directed by Craig Gillespie and written by Ana Nogueira, this is the definitive origin of Earth's mightiest hero.