For twelve-year-old Conni, things get off to a rough start in seventh grade when she has to change schools. And even worse: she's not allowed to keep her runaway dog, Frodo. Frodo's owner is the ruthless principal Möller, who makes life hell not only for his students: when Conni and her friends discover that Möller is also a cruel animal abuser, they vow to take desperate action to save Frodo. With courage, solidarity, and resourcefulness, Conni & Co. plunge into an exciting and fun-packed adventure.