A boy who lives at a country club where his father works decides to make some extra money by selling composted horse manure as fertilizer, and has his three sisters (two of which are older) join him in the enterprise. As their sales increase, they draw increased scrutiny from the IRS and state tax board, as well as the large scale competitor who seeks to put them out of business at any cost.

Scott Schwartz
as Dickie Cessna

Clifton James
as Orville Peterjohn

Charles Hallahan
as Richard Cessna

Margaret Blye
as Joan Cessna (as Maggie Blye)

Basil Hoffman
as Sid Fein

Phil Rubenstein
as Mel Sloman

Vincent Schiavelli
as Phil Porzinski

Allan Rich
as Jim Clark

Ron Rifkin
as George Tuskle

Benny Baker
as Judge Willoughby