Dyan Cannon plays Madie Levrington, a wealthy woman who is also neurotic. She was committed to a New York mental institution by her husband, Benjamin, in order to keep her from divorcing him and taking his money. She manages to escape and, in the process, hitches a ride on a livestock truck.
The truck is driven by Charles Callahan, played by Robert Blake. Before realizing she is on his truck, he hears over his CB radio about her escape and a substantial reward for her return. This gets his attention as he is so in debt that he has a repo man after him to repossess his truck.
Behind her back, he meets up with people who are out to get Madie, and gets part of the reward money from the woman who leads them. At the same time, he is also slowly falling in love with her. He even teaches her to drive the truck (frantically, after he was hit in the crotch and sent flying by a bull).
Eventually she finds the money he was given and she wonders how he got it. He then reluctantly explains how, trying to explain that he took it unwillingly. She doesn't believe him and ends up getting in the truck and driving off without him.
He winds up hitching a ride on the back of a motorcycle with an older man. When they finally find the truck, he is forced to get off the bike and jump onto the back of the truck while both are still moving, thus putting him in her shoes at the beginning.
She drives the truck all the way back home to her husband, who is having a party in the backyard. Despite his pleas for her to stop the truck and that "everything will be just fine", in probably the most memorable scene in the film, she proceeds to wreak havoc on the party by running over everything in her way, and finally put the coup de grace on it by driving the truck through the house until it won't go any further.
After getting out of the truck, Benjamin tries to choke her to death, but Callahan jumps out of the trailer and floors him to the canvas. Then she fingers him out as the driver of the truck, and she and Callahan get away, but not before running one more time into the repo man, where he simply concedes the truck to him.
What does he teach her to drive?
Truck