Eighteen-year-old Catherine Jones, burdened by family responsibility after a tragic loss, juggles school, part-time jobs, and caring for her younger brothers. Her life takes an unexpected turn when she agrees to babysit four-year-old Elsa Ross, the little sister of the enigmatic and possibly 'bad boy' Tyler Ross. Can Catherine navigate the complexities of her new charge and the hidden world of the Ross family, all while trying to keep her own life from falling apart?