Raphael Rowe visits the short-staffed Bomana Prison in Papua New Guinea, where near-constant food shortages keep the facility on the brink of chaos.

The episode was rated 7.14 from 35 votes.

Connolly spends time in two different prisons in the Philippines, where overcrowding, gangs and severe intimidation are a way of life.

The episode was rated 7.06 from 48 votes.

Schwalmstadt, a 12th-century fortress surrounded by a moat, houses some of Germany's worst offenders, many of whom attend intense therapy sessions.

The episode was rated 7.06 from 33 votes.

Mexico's el Hongo prison is home to murderers, hitmen, drug bossess and -- for one week -- Paul Connolly, who experiences life among the inmates.

The episode was rated 7.06 from 54 votes.

Connolly serves time in Poland's Piotrkow prison, a maximun security lockup where the country's most hardened criminals stay in cells 23 hours a day.

The episode was rated 7.03 from 61 votes.

Ukraine's Zhytomyr Prison is operated with a skeleton crew that allows prisoners to freely roam the grounds -- often with potentially dangerous weapons.

The episode was rated 7.02 from 42 votes.

Investigative journalist Raphael Rowe spends a few days -- both as a guard and a prisoner -- inside Brazil's gang-filled Porto Velho Penitentiary.

The episode was rated 7.02 from 53 votes.

Paul Connolly heads to Honduras, the murder capital of the world, to spend a week living as a prisoner inside one of the most dangerous prisons - Danli Prison.

The episode was rated 6.85 from 75 votes.

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The episode was rated 6.79 from 19 votes.

In Belize Central Prison, the inmates are told that rehabilitation comes through God. Raphael Rowe investigates if this evangelical approach works.

The episode was rated 6.76 from 34 votes.