America's Hardest Prison provides a no hold-barred look at some of the toughest penitentiaries and jails in the USA.
Jobs don't get much tougher than dealing with thousands of dangerous convicts but that's exactly what the officers at these menacing jails have to do every day.
For staff and prisoners alike, problems with overcrowding, understaffing and gang politics create the constant risk of erupting violence.
Can the officers prevent some of the most violent men and women in America from winning the battle?
This is a world where violence, gang warfare and escalating tension all come with the territory, and only the very toughest are able to cope.
Find out what's on with our monthly programme updates.
Get 2 free return flights to New York with Virgin Atlantic when you purchase and register a Jeep® Grand Cherokee before 31 March
Get up close with amazing creatures.
The official stream of Nat Geo TV.
The official UK page for Nat Geo WILD
Cookies are very small text files that are stored on your computer when you visit some websites.
Strictly necessary and performance