Man no longer exists on the planet, having destroyed themselves with horrendous wars. The animals now rule the earth, and many of them, just like man, want to rule by force.
The black rats, led by a despot king called Horrid, were just such a tribe. In the past, Horrid's ancestor had all but wiped out the mouse village of Shen, but some escaped and set up a new village of Shen in a secret location. Horrid found them and was now determined to exterminate them. But Falcon, the prince of Shen, had other ideas.
This is the story of Falcon's heroic struggle to turn the tables on the black rats. He is aided in his task by a fearless young mouse called Buzzer, a band of meerkats, several otters, and a group of hedgehogs. But will they succeed?