Thirty miles away from Pensacola, in the small town of Milton, on the Florida panhandle, lies a compound that's never on the itinerary of local tour buses. It's Santa Rosa Correctional Institution ? the state's toughest maximum-security prison. In this hour, one inmate meets an untimely demise, and a convicted murderer breaks down the ways of prison, while a young, fresh-faced inmate learns about them. Another inmate mails a death threat to the White House and then carries out a shocking act.