In 1983, Larry Marley leads a group of 38 Irish Republican Army inmates as they stage a breakout from Ireland’s highly secure HM Prison Maze, the biggest prison escape in U.K. history. Larry spends years plotting, discerning the prison’s weaknesses and befriending a guard named Gordon and exploiting his trust., In 1983, prisoner Larry Marley (Tom Vaughan-Lawlor) leads a group of 38 Irish Republican Army inmates as they stage a breakout from Ireland’s highly secure HM Prison Maze, the biggest prison escape in U.K. history. Larry spends years plotting, discerning the prison’s weaknesses and befriending a guard named Gordon (Barry Ward) and exploiting his trust. Written and directed by Stephen Burke., Based on true events sourrounding the 1983 prison breakout of 38 IRA prisoners.