A childless couple bury a box in their backyard, containing all of their wishes for an infant. Soon, a child is born, though Timothy Green is not all that he appears.

Deputy Police Chief Brenda Leigh Johnson transfers from Atlanta to LA to head up a special unit of the LAPD that handles sensitive, high-profile murder cases. Johnson's quirky personality and hard-nosed approach often rubs her colleagues the wrong way, but her reputation as one of the world's best interrogator eventually wins over even her toughest critics.