In the first episode of this two-part series, Louis spends time in one of the most notorious sections of Miami County Jail: the fifth and sixth floor of 'Main Jail', where many of the most volatile inmates are incarcerated. Held in large cage-like dwellings for up to 24 men, the inmates have developed a strange and violent jail culture. The men - who remain in the cells almost all the time and may only leave for yard time twice a week - live under the sway of a gladiatorial code. They fight each other for food, for status, and often just to pass the endless hours of confinement. Trips to the infirmary are a frequent occurrence as inmates are viciously attacked and beaten, but the guards say they are powerless to end the abuse.

Louis concludes his exploration into Miami Mega-jail, one of America's largest and most violent of jails, a holding pen for almost 6,000 unconvicted inmates. Louis goes deeper into the jail system, meeting an alleged triple murderer facing a possible death sentence. He also follows a group of forty or so younger inmates who have escaped prison by pleading guilty and agreeing to attend a four-month military-style boot camp. Among them is a 14-year-old boy facing a possible ten-year sentence for armed robbery if he can't survive the boot camp's relentless and brutal training and indoctrination programme. Many will drop out and receive prison sentences, but for a handful this will be their second chance at life.