When the Circus Came to Town chronicles the life of Mary Flynn (Montgomery), a woman nearing middle age living in a small town. When the circus comes through town, she realizes nothing will ever change unless she does something different, so she leaves her boring sheltered life to run away and join the circus. While adapting to her new life, she finds herself challenged, and in the end, happy with her new life.

Melvin Byrd, who dreams of being a scientist, is a Cape Kennedy "miniscule molecular particle surveillance monitor" - in short, a janitor. His job is to keep a major rocket project completely dust-free, and this he does with his own hilariously fantastic inventions - including a literal attack on dirt by a "knight on a white horse". In his work, he meets Judy, a chimp involved in a top-secret project, which leads Melvin into the one room strictly off-limits to him. Not until he has entered the project room does Melvin learn that any man entering it will be negatively ionized - making him fly like a bird.

Lawyer Ralph Anderson arrives in Tula, an amazingly remote town in the desert, as reluctant emissary of mob chief Victor Massonetti, who wants the airstrip clear for his unofficial exit from the country. Ralph's arrival has a profound effect on his estranged father, the sheriff; his brother Tip, an alcoholic deputy; and his ex-sweetheart Linda, now married to Tip. Tension builds as a small army of gangsters takes over the town. Then the situation abruptly changes...

A gunfighter takes part in a scheme to bilk a wealthy cattle family out of half a million dollars by pretending to be their son, who was kidnapped as child.

A bump on the head sends Hank Martin, 1912 mechanic, to Arthurian Britain, 528 A.D., where he is befriended by Sir Sagramore le Desirous and gains power by judicious use of technology. He and Alisande, the King's niece, fall in love at first sight, which draws unwelcome attention from her fiancée Sir Lancelot; but worse trouble befalls when Hank meddles in the kingdom's politics.