Seventeen-year-old trans boy Benji is on the run from the cult who raised him-the fundamentalist group that unleashed Armageddon and destroyed half of the world's population. Cornered by the monsters born from the destruction, Benji is rescued by a group of teens from a local LGBTQ+ Youth Center who've banded together to make their way in this dangerous new world. But the group's leader, Nick, knows Benji's darkest secret: before Benji fled, the cult injected him with bioweapon, designed to mutate him into a monster deadly enough to will eliminate the remaining survivors.