Lockdown

Maryland struggles to contain all of its female felons in one prison, the Maryland Correctional Institution for Women.

Convicted sex offenders at Fremont Correctional in Colorado discuss their crimes, their experiences behind bars and the facility's intensive therapy program.

Tensions threaten to erupt at any moment at the St. Louis County Jail.

Life in one of Mexico's most notorious prisons, Centro do Ejecucion do Sanciones.

Criminals in Cleveland, Ohio must pass through the Cuyahoga County Jail, home of the county's infamous Special Response Team.

Inmates in the largest county jail in Denver take advantage of the run down facility to make weapons before being moved.

The Mexican Mafia battles a local prison gang at Bexar County Jail in San Antonio, Texas.

Officers at Hillsborough County Jail in Tampa, Fla. put their lives on the line to keep inmates safe and under control.

Chaos erupts in one of California's most violent prisons.

Violent murders escalate in Juarez, making it the murder capital of Mexico.