Ten people are invited for a weekend on an island by a Mr U. N. Own, but he isn't on the island. At dinner a record is played, by that all the people are accused of murder, suddenly the first of them is dead, then the next... It seems to be that one of them is the murderer Mr. U. N. Own, but the person in suspect is always the person who is murdered next. At last only two people seem to be left.

In this final installment of the "Why We Fight" propaganda series, the subject focuses on the United States of America. We learn of its good qualities and the things worth fighting for. With that established, we learn of the history of the United States' population shifting opinion towards siding with the Allies against the Axis until the attack on Pearl Harbour which brought America into full scale involvement in the war.

Live-action segments show members of the Disney staff touring South America and recording their impressions in sketches. These segue into four animated sections: "Lake Titicaca" depicts tourist Donald Duck's troubles with a stubborn llama; "Pedro" tells of a little mail plane's adventures flying over the treacherous Andes; "El Gaucho Goofy" transplants an American cowboy into the Argentine pampas; and in "Aquarela do Brasil," Jose Carioca shows Donald the sights and sounds of Rio de Janiero.

The residents of a British village during WWII welcome a platoon of soldiers who are to be billeted with them. The trusting residents then discover that the soldiers are Germans who proceed to hold the village captive.

Arthur King joins the army, and soon starts fantasising about King Arthur and his knights.

A lowly BBC employee pulls a prank at the studio and finds himself transferred to an isolated island where he is to set up a weather station at a lighthouse. As if in a fantasy, a ship carrying a bevy of beautiful models is shipwrecked off the coast and the models wind up on the island. However, when the models begin disappearing, the "back-room boy" investigates and finds a sinister scheme involving spies and Nazi battleships.

Dr. Lorenz, a mad scientist, wants to keep his elderly wife young. He does this by kidnapping young females and extracting fluid from them. He then injects this fluid into his wife. What a diabolical guy!

Sisters Ruth and Eileen Sherwood move from Ohio to New York in the hopes of building their careers. Ruth wants to get a job as a writer, while Eileen hopes to succeed on the stage. The two end up living in a dismal basement apartment in Greenwich Village, where a parade of odd characters are constantly breezing in and out. The women also meet up with magazine editor Bob Baker, who takes a personal interest in helping both with their career plans.

An insane murderer is on the loose, and gunning for the men who put him away. Will Hay is on the list, and co-opts Claude Hulbert to try and stop him from meeting a grisly end. This black comedy suggests that, had he lived, Will Hay might have moved on to the darker corners of Ealing comedies such as 'The Ladykillers'.