The Carter family is poor but happy. Father Calvin supports them by holding down two jobs. Mama, a revivalist lady, also works as a cleaning woman. There is also Big Mama the grandmother, a teenage daughter and son David Lee, a recent college graduate who has had to take a job as bank janitor. While he is working, the bank is robbed by two white men in Batman masks. In their haste, they drop a bundle, David picks it up, and it is $50,000! So he buys presents for the family and uses some of it to give himself a new start and to get married. When the family finds out where the money came from, their scruples are tested but they finally agree that the Lord works in mysterious ways and this time he is working for them.