In a world devastated by a zombie virus, Carter lives a solitary existence, spending his nights hunting down the living dead for sport with the help of a tremendous power. However, he finds new purpose after saving the lives of two siblings, Megan and Billy, who are seeking a rumoured safe zone. Reluctantly agreeing to protect them on their journey, the trio must outrun the next evolution of their undead enemy, and even their fellow survivors, who all pose unimaginable danger.