When bodies with unusual traits start showing up in the morgue, intern Taylor Lopez is alarmed enough to dig into the dead people's profiles. After discovering they were born at the same clinic two decades earlier, she investigates further and uncovers a shocking list. With the realization that more gender-fluid people are targeted for elimination, Taylor kicks her investigation into high gear. But Major Blackburn, the researcher who conducted the experiment, isn't about to let anything interfere with his plans. Soon Taylor is in deep trouble and needs the help of FBI Special Agent Bailey. As Bailey scrambles to track down leads, events spin out of control and she finds herself blocked at every step by powerful military forces. With the clock ticking on Phase 2 of the experiment, can Bailey and Taylor uncover the truth in time to save the other young subjects?