While on the verge of getting her first boyfriend, fifteen-year-old Jenna tries to solve an angel's murder, discover the secrets of another angel, and help her brother, a guardian angel with adjustment issues.
After dying in a car accident, fourteen-year-old Jenna's older brother returns as an angel to help Jenna solve a mystery that not only holds the key to her survival, but also to their mother's mysterious depression and their father's disappearance.