Fifty years ago, the world was almost destroyed by a chemical war. Now the world is divided: the mutants and the pure, the broken and the privileged, the damaged and the perfect.

Thirteen years ago, a covert government experimental facility was shut down and its residents killed. The secrets it held died with them. But five extraordinary kids survived.

Today four teenagers are about to discover that their mutant blood brings with it special powers. Rush and three brothers and sisters he can't remember. Two rival factions are chasing them. One by one, they face the enemy. Together, they might just stay alive . . .