CODE-Z Canada’s mandatory vaccination was supposed to save lives. Instead, it created hundreds of thousands of flesh-eating zombies—and now the horde is heading straight for the United States. America’s last defense is CODE-Z, a covert weapon unlike anything ever unleashed: Thousands of genetically enhanced wolves bred to hunt and destroy the infected. It’s a bloody intense war between crazed zombies and genetic enhanced wolves with only one species destined to survive.