A former OSS officer, Chris Jackson, is now teaching at a small university. Just as he's named head of the history department, an OSS agent asks him to rejoin. His services are needed by the government in "zone four."

A former OSS officer, Chris Jackson, is now teaching at a small university. Just as he's named head of the history department, an OSS agent asks him to rejoin. His services are needed by the government in "zone four."

A snobbish college professor finds implicated in the killing of a Latin American scholar. He finds himself hunted by a sinister ring of assassins.