Tập 13: Gamba và những chú chuột đối mặt với những ngọn đồi khó khăn và việc huấn luyện bò

13

The mice have a hard climb up the hills. In a field, they practice they fighting and stealth skills on a cow, with Gamba ultimately defeating it. Gamba lets his pride get to his head and puts himself and some of his friends in danger. (Source: Wikipedia)