In this animated feature, a quartet of misfits -- Buster the dog, Gwendolyn the cat, Fred the donkey and a rooster named Tortellini -- decide to pool their talents and sing in the streets of Paris. But thanks to a mislabeled road sign, they end up in Bremen, Germany, under the control of the evil Dr. Gier, who runs a company called "Mix and Match" that turns animals into sausages. The plucky creatures must keep their cool while outwitting the doctor and discovering their true voices.