In the future, the Earth, ravaged by nuclear wars, gave birth to an array of new mutated species, which grew and repopulated the land. But this new world is far from peaceful, and life in it is often short and brutal...

To make life easier for his poor family, Solo, a young rat, decides to strike out on his own. But he soon finds that in this hostile world only the strongest and the most ruthless survive. If he wants to carve out a place for himself in this land overridden with cannibals and robbers, he will need to be faster, smarter and more brutal than the monsters he faces...