. >> even for the experienced ert team members like deputy david godfrey, walking into a riot like thise early '90s could be a frightening experience. >> even in the smallest scenario we're outnumbered probably four to one. we come out in the yard in a disturbance like this, there can be 200, 300 inmates in the yard. and you're trying to put down a riot with 10 to 12 deputies. that's probably the scariest aspect of it, just the sheer numbers. >> okay. good job, guys. excellent. had a lockdown in about a minute and 30 seconds. that's a record. >> after each training exercise deputies are critiqued and evaluated on their performance during the drill. >> do it like we train you, bring it up and snap, bring it up and snap it. when you get out there and things get real tight and people are throwing things at you, you know, that's the last thing you think about. you think about snapping it, don't. because if it breaks on you, all you've got is a big club. and that's not going to do you guys or your team or anybody else any good. >>> next, "lockup" takes you inside 900 max, nccf's 24-hour lock