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The Corcoran State Prison, located in an isolated valley, is one of California's largest maximum-security institutions.

Revealing of how these women deal with relationships and struggles.

A profile of San Quentin State Prison in California; one of the most famous, most notorious penitentiaries in the world.

Life inside prisons throughout Scotland and Belgium.

Five notorious inmates reveal insights into their predatory behavior.

The Residential Treatment Unit.

Inside the largest maximum security facility in Salt Lake City. A "jail within a prison" protects some inmates from others.

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A celebrity rapper enters the Santa Rita jail; brothers deal with gangs, drugs and parenthood; a three-time convicted murderer claims he's killed others as well.

Riverbend Maximum Security Prison inmates tell their stories.

California's Kern Valley State Prison opens its doors in 2005.

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Extractions at Colorado State Penitentiary.

A female housing unit inmates call a party house will turn a new inmates life upside down.

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Corcoran officers put their lives on the line to prevent inmate attacks.

Contraband finds its way to the inmates.

Behind the walls of Kentucky's only maximum security prison.

Miami's prison system.

One of the most violent and volatile penitentiaries in the nation.

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Many inmates use their time in jail to get clean off drugs and get their lives on the right path. Others, however, simply can’t wait return to the dangerous lifestyle of the streets.

Alabama's Holman maximum security prison.

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