An alien scout lands on earth in the year 1854. The creature is searching for water and food. Once it finds what it needs, it will call in an invasion fleet. A lone cowboy must stand against the alien invader or all will be lost.

In a savage land where zombies roam freely – Lieutenant Colonel Sawyer is armed with machine guns, body armor and courage. He is on a mission to give his family a burial at sea. To reach the coast, he must enter a quarantined infected zone and fight through hordes of bloodthirsty zombies. There he encounters a group of survivors including a young woman who is a target of both the male survivors and the ravenous zombies. To protect the last non-infected humans and complete his mission, Colonel Sawyer must face the Dead, the Damned and the Darkness.