Twelve-year-old Robin will never get over her mother's death. Nor will she forgive her father for moving the family to a small town to live with a weird grandmother. At her new school Robin is laughingly called "Green Girl" and is taunted relentlessly because of an award she received. She decides not to care about anyone or anything. But when her pregnant dog plunges into the frozen lake, she saves the dog and hence the puppies.

Robin finds she can't stop herself from caring. She begins rescuing wild animals and rehabilitates them in the barn. Robin's father forbids her to take in more, but she rescues some skunks, anyway, and hides them. Other animals arrive, and soon she's running an illegal animal shelter. When she's found out, Robin mounts a campaign to save her shelter. Will she have the courage to stand against the whole town?