Twelve-year-old Mia is having a hard time. Her parents are arguing about overcrowding at the animal shelter they own. Her best friend, Lily, is suddenly no longer interested in the things they used to do together. And it's been impossible for her classmates to agree on a topic for their big group project!

With so much going wrong, Mia just wants to do one thing right. She attempts to befriend one of the students in her project group, a new kid named Riley, by pressuring him to adopt a dog from her parents' shelter. Riley reluctantly agrees, but it isn't long before he brings the dog back. It wasn't a perfect fit, and Riley wasn't ready for the responsibility.

But Mia isn't discouraged. If anything, she's more determined than ever to solve all her problems, starting with her parents' shelter. If she can find the perfect homes for the animals there, Mia can help her family, bring her school group together, and maybe even reconnect with Lily. With some luck and hard work, anything is possible!