This is the untold story of the truly groundbreaking linguistic and educational developments that took place among Republican prisoners in Long Kesh prison from 1972-2000. During a period of bitter struggle between Republican prisoners and the British state, the Irish language was taught and spoken as a form of resistance during incarceration. Based on unprecedented interviews, Feargal Mac Ionnrachtaigh explores the undertakings of veteran prisoners from the 1940s and 50's, Bobby Sands and the Blanket protesters and the female prisoners at Armagh and Maghaberry, revealing not only the impact of colonialism on minority languages, but the rejuvenating impact this reclamation of the native tongue had on cultural revival in the nationalist community within and beyond the prison walls.