Inside the World's Toughest Prisons

Traveling to Moldova, Raphael Rowe locks himself within Penitentiary 17, a maximum-security prison housing more than a hundred life-sentence inmates.

The Central Jail of Nicosia in Cyprus had undergone radical transformation over the years. But are these changes for the better?

At Zenica prison in Bosnia and Herzegovina, Raphael Rowe finds himself trapped with inmates ranking from organized crime bosses to ruthless killers.

Raphael Rowe investigates one of Greece`s most overcrowded maximum-security prisons, overflowing with some of the country`s most dangerous offenders.