The great hero Musk Oh Los the Brave has only one goal: to make Geronimort a true Pontoeking! To prove his worth, the intellectual mouse must manage to acquire a dragon's tooth!

But before he clashes with the fearsome dragons, Geronimort will have to face angry goats, rushing streams, and threatening brown bears! Will he manage to conquer his first Pontoeking helmet? In the distant North, on a mysterious archipelago, lives a people of rodents who fear nothing, except for dragons… The Pontoeking! They are all tall, sturdy, and courageous, all except for Geronimort. He is the intellectual of the village, and his dream is to win a Pontoeking helmet and… the heart of the beautiful Turfina!