AllMovie

Images from the maximum-security prison in Corcoran, California. A surveillance camera shows a pie-shaped segment of the concrete yard where the prisoners, dressed in shorts and mostly shirtless, are allowed to spend half an hour a day. When one convict attacks another, those not involved lay flat on the ground, arms over their heads. They know that when a fight breaks out, the guard calls out a warning and then fires rubber bullets. If the fight continues, the guard shoots real bullets.