Five of the most notorious inmates to ever appear on Lockup reveal startling insights into their shocking brands of predatory behavior.

Some of the most memorable and unexpected moments we've encountered inside America's prisons.

This episode looks at the different ways prisoners handle living a life spent behind bars.

In a life full of restrictions, we've seen inmates take control of whatever they can, despite the consequences. Some actions can never be reversed.

The shocking stories of grisly murders, and the inmates responsible for them, revealed in this startling episode.

This episode highlights the story of three inmates as they get ready for release.

These are the prison stories best described by one word. And the word is...HARDCORE.

Inmates deal with the consequences of their actions.