Ireland, 1979. Frank and Gerard, two young terrorists, are arrested and tried Frank is sentenced to life imprisonment, and Gerard to twelve. They and three hundred companions, refuse to wear the regular uniform, because they are considered prisoners of war.
After some confrontations, an agreement is reached: terrorists, as they asked, can wear street clothes, but the government also grants this privilege to common prisoners; So the conflict is reborn.
Outside the prison, Gerard's mother, who was previously opposed to any kind of violence, is increasingly approaching the position of her new friend, Frank's mother, who is a radical nationalist.