A group of juvenile delinquents live a violent life in the infamous slums of Mexico City; among them Pedro, whose morality is gradually corrupted and destroyed by the others.
Gloria encounters Francisco, a man whose social veneer betrays a truer self burrowed underneath.
An IRA operative escapes to the Americas and teams up with a circus singer to create a popular vaudeville act. When the singer falls for a rebel, they leave the circus behind to become fierce revolutionaries.
