These are six of the toughest prisons in the world. Prisons so tough, even gang bosses and killers learn the meaning of fear. Across four continents, six different prisons, the series takes us beyond the gates, walls, barred windows and cells into an unknown world, a world we know exists, but a world nobody wants to think about. Imagine prisons so tough that even the hardest gang bosses and murderers learn the meaning of fear. This extraordinary series offers intimate portraits of crime and punishment set within the gates, walls, barred windows and cells of the world's toughest maximum security prisons. From Bolivia to Bulgaria, Dallas to Arizona, viewers meet hardened criminals with stories that shake them to the core.　　译文(2): 这是世界上最难的六所监【资源囤-ZiYuanTun.Com】。监狱是如此的艰苦，即使是帮派老大和杀手也学会了恐惧的含义。穿越四大洲，六个不同的监狱，这个系列带我们穿越大门，高墙，铁窗和牢房，进入一个未知的世界，一个我们知道存在的世界，但是一个没人愿意去想的世界。想象一下，监狱是如此的严酷，以至于即使是最难对付的帮派老大和杀人犯也能学会恐惧的含义。这个非凡的系列提供了犯罪和惩罚的亲密肖像设置在大门，墙壁，窗户和牢房的世界上最严格的最高安全监狱。从玻利维亚到保加利亚，从达拉斯到亚利桑那州，观众们用震撼他们内心的故事来见识冷酷的罪犯。