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.

Paul serves time in the purpose built prison in Poland, that was built to hold the worst criminals of the worst. Here he meets a notorious gangland killer and learns how a zero tolerance regime wiped out a prison gang.

In a television first, crime journalist Paul Connolly is granted access to El Hongo maximum security prison, one of Mexico's toughest jails from where no-one has never escaped. Isolated in the barren Baja desert of northern Mexico, El Hongo is a concrete fortress of discipline and punishment designed to contain and control over a thousand inmates including hardened cartel gangsters.

Paul spends time in the Rizal City Jail, known for been both overcrowded and housing impoverished prisoners. Here he shares a cell with a murderer and a rapist. He also explores how the Bahala Na gang rules a prison in the country.