A donkey has grown old and weak after having worked for his master for a long time. Realizing his prime time has passed, the donkey decides to go to Bremen to join the town musicians. His strong and pure wish formed a magic guitar, which leads him to meet new friends, a dog, a cat, and a rooster. On the way, they find the robbers’ house. Through vigilantism, four animals brought those wrongdoers to justice and scared them away. They spend the rest of their life in peace in their new home.