Peter Sellers stars as Harold Fine, a self-described square--a 35-year-old Los Angeles Lawyer who is not looking forward to middle age and his upcoming wedding. His life changes, however, when he falls in love with Nancy, a free-spirited, innocent, and beautiful young hippie. After Harold and his family enjoy some of her "groovy" brownies, he decides to "drop out" with her and become a hippie too. But can he return to his old life when he discovers that the hippie lifestyle is just a little too independent and irresponsible for his tastes?

A young field administrator for the TVA comes to rural Tennessee to oversee the building of a dam on the Tennessee River. He encounters opposition from the local people, in particular a farmer who objects to his employment (with pay) of local black laborers. Much of the plot revolves around the eviction of an elderly woman from her home on an island in the River, and the young man's love affair with that woman's widowed granddaughter.

Smooth cowboy Dan Kehoe arrives at a ranch run by an old widow and her four daughters-in-law. He's been tipped off that the proceeds of a gold robbery are hidden on the ranch and only one of the women knows where. He plays them off against each other in his quest to discover the location.

An Italian-American neighborhood in Louisiana is disturbed when truck driver Rosario Delle Rose is killed by police while smuggling...