In New York, people are slain and strangled to death brutally on the open street. All witnesses agree that the murderer was in a cop’s uniform. Soon the police searches and finds a suspect in its own ranks: Jack Forrest, turned in by his own wife. To prove his innocence, he has to investigate on his own.
In 1997, the island of Manhattan has been walled off and turned into a giant maximum security prison within which the country’s worst criminals are left to form their own anarchic society. However, when the President of the United States crash lands on the island, the authorities turn to a former soldier and current convict, Snake Plissken, to rescue him.