It's time again for California's "Young American Miss" beauty pageant, the biggest event of the year for Big Bob Freelander and Brenda DiCarlo, who give their all to put on a successful pageant. But Brenda is having marital difficulties and Bob's son is up to some mischief. Could this year's pageant be in jeopardy?

A young man, Bert Cates, is arrested in a small Bible Belt town for teaching the theory of Evolution in the public school. Two of the finest legal minds in the U.S. are called to the trial: Henry Drummond for the defense, and Matthew Harrison Brady for the prosecution. The trial proceeds on three levels, the guilt or innocence of Cates, the issue of the Bible vs. Darwin, and finally, the personal confrontation between Drummond and Brady.