The Duchy of Grand Fenwick decides that the only way to get out of their economic woes is to declare war on the United States, lose and accept foreign aid. They send an invasion force (in chain mail, armed with bows and arrows) to New York and they arrive during a nuclear drill that has cleared the streets.
Sid Gibson is a soap powder salesman who decides what he really needs is TV advertising. The problem is, he's absolutely broke. He calls upon his friend Arthur Ashton, who arranges to sneak a plug for Sid's suds into a live TV spectacular. The public goes bananas for the product but to maintain sales Sid and Arthur must arrange for ever more outrageous plugs on TV shows. The Ascots races, the Edinburgh Military Tattoo - no show is safe.
A doctor's sophisticated wife joins him at his remote Asian practice to try and patch up their marriage. Increasingly violent friction between local rubber plantation workers and the authorities force both parties to make decisions.
The host of a radio crime show finds himself mixed up with real gangsters after he re-creates a notorious murder on the air. He uses his knowledge of criminology to foil the gang's wicked scheme.
This movie debut for saucy British TV comic Benny Hill has Benny leaving his job as a sweeper after winning some money. He becomes a private detective and investigates a plot to assassinate British scientists.