
In Prohibition-era Chicago, two rival gangs compete for control of the city's rackets.

Retired agent Matt Helm is re-activated in order to stop an evil organization from exploding an atom bomb over the USA and starting WWIII.

Gold bullion worth USD 1 billion has been stolen from a hijacked train in Denmark. The main suspect is Count Massimo Contini. The US government sends Matt Helm, one of its top agents, to investigate and recover the gold.

Handsome top-secret American agent Matt Helm must recover a laser-weapons inventor who has been kidnapped by arch-villain Julian Wall.

Secret agent Matt Helm must battle foreign spies and a rogue nation's exiled ruler in order to recover a hijacked U.S. government experimental flying saucer.