A band of vigilantes catch Jed Cooper and, incorrectly believing him guilty of cattle rustling and murder, hang him and leave him for dead. But he doesn't die. He returns to his former profession of lawman to hunt down his lynchers and bring them to justice.

A former British spy stumbles into in a plot to overthrow Communism with the help of a supercomputer. But who is working for whom?

The defense and the prosecution have rested and the jury is filing into the jury room to decide if a young Spanish-American is guilty or innocent of murdering his father. What begins as an open and shut case of murder soon becomes a mini-drama of each of the jurors' prejudices and preconceptions about the trial, the accused, and each other. Based on the play, all of the action takes place on the stage of the jury room.