1. Gangland

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. 7 May 2006. 45 min

California's Pelican Bay State Prison leads the war on prison gangs.

2. Predators Behind Bars

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. 7 May 2006. 45 min

Ohio's Lebanon Correctional Institution is overfull and behind the times.

3. Inside Maximum Security

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. 7 May 2006. 45 min

Oak Park Heights Supermax controls violent prisoners.

4. Gang Wars

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. 3 December 2006. 45 min

Salinas Valley State Prison in Soledad, Calif.

5. Women Behind Bars

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. 11 February 2007. 45 min

California's Valley State Prison deals with violent inmates, overcrowding and heavy drug-trade.

6. Total Control

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. 11 February 2007. 45 min

One of the newest, high-tech maximum security prisons in the United States.

7. Alexander Correctional Institution

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. 18 February 2007. 45 min

Nearly 2,200 dangerous and conniving criminals.