During the Fourth War of the Sun, a small puppy named DOGGY experienced an irreparable trauma: his mother was brutally murdered and his eight brothers, still puppies, were kidnapped by a mysterious man. In an attempt to save them, Doggy fought bravely against the terrible killer, but all his efforts were in vain and he was left for dead.
Years pass and Doggy is older and calloused. He has become a battle dog and his only goal is to quench his thirst for revenge. To do this, he must find his brothers and defeat the greatest empire of machines and robots that has ever existed.