Eleven-year-old Sadie Mitchell-Rosen is having trouble fitting in at school and at home, so when she meets a dog named Dewey things seem to get better for her Eleven-year-old Sadie's school year is off to an awful start. Her best (and only) friend has moved away, her older brother is a jerk (as always), and her beloved Gramps is having more and more trouble keeping his memories straight. But when she comes across a stray dog, she discovers something...