Stopmouth and his family know of no other life than the daily battle to survive. To live, they must hunt rival species, or negotiate flesh-trade with those who crave meat of the freshest human kind. It is a savage, desperate existence. And for Stopmouth, considered slow-witted hunt-fodder by his tribe due in part to his stutter, the future looks especially bleak. But then, on the day he is callously betrayed by his brother, a strange and beautiful woman falls from the sky. It is a moment that will change his destiny, and that of all humanity, forever.