Bumbling lieutenant Frank Drebin is out to foil the big boys in the energy industry, who intend to suppress technology that will put them out of business.

Lazy preppie Palmer Woodrow hires street-smart Eddie Keaton to go to school for him while he lives it up in Europe. Eddie falls in love with preppie gal Tracey, upsetting Biff, the Hoover Academy bully. When his bookie from the old neighborhood, Dice, comes to collect on Eddie's gambling debts and Palmer returns early from Europe, the scheme slowly starts to unravel. Soon, Eddie can't even tell whose side he's really on.

A man refuses to believe that pilot error caused a fatal crash, and persists in looking for another reason. Airliner crashes near Los Angeles due to unusual string of coincidences. Stewardess, who is sole survivor, joins airline executives in discovering the causes of the crash.

The widows and children of survivors of the H.M.S. Bounty rule Pitcairn Island, fighting off sailors and intruders.

When well-off aircraft designer Denning finds his daughter's current boyfriend is a nasty character he tries to buy him off, ending up hitting him and causing his death when he falls. Instead of calling the police he dumps the body in a lonely spot on the road to the North, making it look like a hit-and-run accident. Weeks later there is still no report of the body being found, and Denning starts to go to pieces. When he lets his wife into his secret the two start making enquiries, possibly making things worse.