A dedicated FBI agent recalls the agency's battles against the Klan, organized crime and Communist spies.

A government agent investigates the use of illegal amphetamines among long-haul truck drivers.

A woman leads an expedition into a remote jungle to find her long-lost brother, but instead finds a mad scientist who has created a fungus monster that feeds on the local inhabitants.

Highway Patrol was a syndicated, fictional police action series produced from 1955 to 1959, concerning the activities of the highway patrol and their leader, Dan Matthews (who held no rank). Although filmed in and around the Los Angeles area, the state setting for the stories was never identified, and city and street names were fictionalized.