James B. Allardice

Alvin Corwin is low man on the totem pole, and goes from one mishap to another at an army training camp in World War II. (imdb)

Herman owes a lot of gambling debts. To pay them off, he promises the mob he'll fix a horse, so that it does not run. He intends to trick his animal-loving cousin, Virgil, an apprentice veterinarian, into helping him. Of course, he doesn't tell Virgil what he is really up to. Mistaken identities are assumed, while along the way, Virgil meets a female vet and Herman falls for the owner of the horse. Goons and mobsters are also lurking around; so beware! (imdb)

Eddie Walker of New York City and Tommy Finch of London, England had been World War II buddies and they decide to swap teenage daughters Patty and Heather for a year.