Four-year-old Sal cannot find a gift she recieved from Santa, her new baby sister still does not have a name and takes up all of Mama's attention, and her brother Billy is annoying, but Sal finds her own strenghts over an eventful Christmas season with her family.

Ignored by her parents since her "perfect" older sister, Julia, had a baby, Cassie, twelve, foregoes her summer plans to join Julia and baby Addie on a road trip.