Inspired by true events, Diane and Rob King are thrilled over the news of Diane's pregnancy. Chelsey Miller, a woman desperate to have a baby, discovers that she's unable to have one of her own, and stalks the unsuspecting Diane with the intentions of stealing her baby. When Diane's due date approaches, Chelsey kidnaps her and gives her a labor-inducing drug, forcing Diane to deliver the baby. Chelsey takes the baby and Diane is found alive. Now Diane and Rob must do everything they can to find their newborn, who has a rare congenital condition that needs to be treated immediately, before it is too late.