Rabbit Town and Fox Town have been sworn enemies for centuries. The evil Fox Army has always wanted to conquer beautiful Rabbit Town, but the town has long been protected by a mysterious "Guardian Tome." To seize Rabbit Town, the Fox Commander sends his smartest inventor, Fire Fox Ding Dong, to infiltrate Rabbit Town and steal the Guardian Tome. However, this seemingly fierce but genuinely kind-hearted fox gradually finds himself moved by the rabbits' goodness and sincerity. In Rabbit Town, Fire Fox discovers the true meaning of invention and learns the essence of peace and friendship, falling deeply in love with this beautiful town. But just then, the Fox Commander orders an attack on Rabbit Town...