"Mama? Help me." Laurie Ahmadi has worked as a 911 police dispatcher in her quiet Northern California town for seventeen years, ever since a violent incident convinced her that she wasn't made to be a cop. She considers the department her family; her husband, Omid, is its first Arab-American chief, and their teenaged daughter Jojo has grown up surrounded by cops, EMTs, and dispatchers. So when Laurie catches a 911 call and, to her horror, it's Jojo, the whole department springs into action. Jojo, drugged, disoriented, and in pain, doesn't remember how she ended up at the home of Kevin Leeds, a pro football player famous for his on-the-field activism and his work with the CapB—"Citizens Against Police Brutality"—movement. She doesn't know what happened to Kevin's trainer, whose beaten corpse is also discovered in the house. And she has no idea where her best friend Harper, who was with her earlier in the evening and never made it home, could be. When Jojo's rape kit comes back positive, the case seems straightforward—Kevin Leeds hates cops and did all of this on behalf of CapB. But Jojo insists that Kevin wouldn't hurt her, or anyone. Which means that Harper is still in danger. But when Jojo begins to dive into Harper's social media to look for clues to her whereabouts, she uncovers a shocking secret that turns everything she knew about Harper—and the police department she's always considered her family—on its head. With everything they thought they could rely in question, Laurie and Jojo begin to realize that they can't trust anyone to find Harper except themselves ... and time is running out.