The Navy expects a veteran to pay for the ship he commanded, as they have no record of its return.

The weirdest alien of the galaxy pays a visit to Earth... Jerry Lewis is Kreton, a childish alien who, against his teacher's will leaves his planet to visit the Earth, and lands in the backyard of a famous television journalist who doesn't believe in UFOs and aliens. Wanting to study humans but not able to fully understand them, Kreton makes a mess out of it, generating a lot of comic situations.

Scat Sweeney and Hot Lips Barton, two out of work musicians, stow away onboard a ship bound for Rio, after accidentally setting fire to the big top of a circus. They then get mixed up with a potential suicide Lucia, who first thanks them, then unexpectedly turns them over to the ship's captain. When they find out that she has been hypnotized, to go through a marriage of convenience, when the ship reaches Rio, the boys turn up at the ceremony, in order to stop the wedding, and to help catch the crooks.

Stationed in West Germany, soldier Tulsa McLean hopes to open a nightclub once he's discharged. Although he may lack the capital for such a venture, a chance to raise the cash comes his way through a friendly wager. Local dancer Lili is a notorious ice queen, and Tulsa bets everything he has that a friend of his can earn her affections. But when the friend is dispatched to Alaska, it's up to Tulsa to melt Lili's heart.

Baby photographer Ronnie Jackson, on death row in San Quentin, tells reporters how he got there: taking care of his private-eye neighbor's office, Ronnie is asked by the irresistible Baroness Montay to find the missing Baron. There follow confusing but sinister doings in a gloomy mansion and a private sanatorium, with every plot twist a parody of thriller cliches. What are the villains really after? Can Ronnie beat a framed murder rap?

喜剧演员怀特被美军召集入伍，但不是去当兵，而是让他去当间谍，身份也是喜剧演员，要拿微型照相机去到摩洛哥把美军需要的机密拍照会俩，在摩洛哥他遇到了“老朋友”莉莉，两人开始小打小闹，最后才发现对方是间谍。