Automaton Transfusion

In the 1970s, the U.S. Army secretly tried reanimating the dead to fight in the Vietnam War, but the project was shut down when the corpses craved human flesh. Thirty years later, the project is restarted in Grover City, but things go wrong, and zombies begin to attack. As the town is overrun, a group of high school seniors band together to fight through swamps and forests in search of a cure.