Mentally unstable Vietnam vets who were held captive by the Viet Cong come back to America after being rescued carrying a dangerous virus that turns people into cannibals when bitten.

In the Vietnam War, Captain Norman Hopper and his platoon attack a Vietnamese base and rescue two American soldiers in a cage. Charlie Bukowski and Tom Thompson are eating human flesh, and when Norman gives his hand to take them out of the cage, Bukowski bites him. In the present days (1980), Norman has sequels from the bite such as nightmares, and his wife, the television anchor Jane Hopper, is worried about his health and mental conditions. Out of the blue, he receives a phone call from Bukowski that is interned in a mental institution with Tom, inviting him to drink with him in a bar since he is better and has obtained his first release from the hospital since the war. Norman refuses and stays home, but his teenage next door neighbor Mary hits on him and he feels desire to bite her belly. Meanwhile, Bukowski bites a woman in the movie theater and a police officer, in the beginning of a cannibalism spree in Atlanta.—Claudio Carvalho, Rio de Janeiro, Brazil

It starts off in Vietnam where John Saxon gets bitten by P.O.W. John Morghen who has been infected with some sort of cannibal virus. A few decades later in Atlanta, Georgia, Saxon wakes up from a nightmare flashback of what actually happened back in 'Nam. Saxon then receives a call from Morghen asking him if he wants to go out for a drink but Saxon refuses remembering the incident in 'Nam. Morghen has turned into a cannibal and is soon on the run after biting into a woman's neck. He barricades himself in a department store and shoots some folks with a shotgun. The cannibal virus spreads and soon Saxon joins veterans Morghen and Tony King along with some others to wreak some havoc.—Sujit R. Varma