It's the story of Navin, a fool who grew up in Mississippi. Nave is a young man as the adopted son of a black family but on his 18th birthday he feels like he wants to discover the rest of the world. This person began his mission as he set out on St. Louis and there everyone took advantage of his naivety, but a simple invention could change the course of his life.
An artless, non-stop barrage of off-the-wall situations, funny and unfunny jokes, generally effective and sometimes hilarious sight gags and bawdy non sequiturs.
We get the sense at times that the cast and crew arrived at a location, found the script bankrupt of real laughs, and started looking around for funny props.
Its humor is successful and unsuccessful by turns, and although Comedian Carl Reiner is the director, the instinct here is to give most of both credit and blame to Martin.