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that's next on msnbc's "lockup: stateville." >>> oftentimes stateville appears deserted.only the ever-present guards in their towers break up the otherwise lifeless landscape. the desolate atmosphere is a direct result of the institutional reforms implemented here in the mid-1990s. before then, hundreds of inmates filled the grounds, worked out in the yards and pursued a variety of programs. today, the vast majority of inmates spend most of their day in their cells. >> it's depress -- it's real depressing. it's depressing. but i try to stay focused. i always try to keep an avenue of hope. because without hope, you would go crazy here. >> life here means spending more than 20 hours a day in a 7x10 foot cell. the only regular time out is an hour of exercise in the yard five days a week and one hour for lunch and dinner. the majority of prisoners spend their days watching television, reading and sleeping. >> i want you to do this entire section on mechanics. >> stateville does have a mandated adult education program where prisoners can work towards their ged or graduate equi

every day he puts it right back on. >> in the segregation unit at the stateville correctional facility. basically this is where they have people, being extra bad in the facility come and be locked up. they urinate, bowel movement everywhere, i think they just kind of have gone crazy, prison life is probably getting to them. >> but we have never seen a more bizarre display of the gut churning activity than at california state prison corcoran. it happened during a routine shoot at the prison hospital. >> we were there for like ten minutes. did a couple interviews with a couple doctors. initially it seemed like it was going to be mundane and going through the process. so we decided to leave. we were all packed up ready to go back into the other section of the prison when all hell broke loose. >> we have four inmates in four different cells that are holding food trays, some have started flooding the pier with causing the toilets to back up, causing water to come out on the floor. i'll first go out, try to talk to the inmates and trying to get them into compliance. inmates failed to comply