one is located at pelican bay. >> many of them are in here indeterminately.y'll never leave shu until a committee decides they are not a part of a gang anymore. >> this officer works at the shu. he told us a simple lapse on his part could result in gang warfare. >> if i were to pop two doors at the same time and they were, the mexican-american from los angeles and a mexican-american from sacramento, the odds are very, very good they would immediately commence to fight because that is expected of them in prison. that's the rules of the game. if word got out that they had an opportunity and didn't go after someone, they would have some explaining to do. that's just life in prison. >> they are restricted to their cell for 23 1/2 hours a day. they only get a half hour outside in their little hard yard right next to their cells and then they're right back into their cells. >> despite the restrictive conditions in the shu, gang members still find ways to make weapons, sometimes carving them right out of their own cells. >> this was made by an arian brotherhood memb

us, pelican bay, and tehachapi house all the prison gang members.the street gangs are run by the fellows in the back, the prison gang members. >>"guys in the back" is a polite way of referring to guys locked in solitary confinement in the shu? >>yeah. (laura) i just don't want them to get too unruly. (man) let's do it really fast. they can see us, though. (laura) i know. i think people are going to start stripping or something. uhm. over here, you can see that these guys are locked up in cages. that's because this is what's known as the shu, the security housing unit. this is for the most violent offenders. people don't get stuck in these isolation units because of what they do on the streets they get stuck in here because of violent acts they've committed inside prison. it's amazing because we've been hearing about the power structure that goes on in the prison. people will be answering orders that come from the top. and the top means guys who are locked up here, these guys who are totally locked up in isolation. the mexican mafia, nuestra familia,

. >> at pelican bay, we saw the definitive guide to distilling white lightning.it explains to his friends in the tier how to manufacture pure alcohol. >> they're actually making it. 150 proof. that's not your regular pruno. a little more sophisticated. >> this is the final result. this here is about the equivalent of grain alcohol. extremely potent. >> how does this taste? >> white lightning tastes exactly like whiskey without any cut. some guys will cut it with say kool-aid or something because it is too strong. then you have other guys, they just down it. just raw. and a lot of these dudes that make this stuff, they don't realize that the bacteria in the stuff they're drinking will give them tuberculosis and other diseases. because it is nothing but rotten food that it is made from. >> since drunken inmates can lead to big trouble, correctional officers are constantly on the lookout. >> they're out there searching. they'll find it. three days later, the same cell, they're making alcohol again. it is just constant. we have over 3,000 inmates doing this. >> comin

bay sits florida's smallest city, call it islandia or call it paradise. >> it is paradise. >> reporter: deb johnson is one of five people that call it home. >> i have my neighbors pete there. all pelicansete. water is like an aquarium here. >> reporter: front yard, backyard is all atlantic ocean? >> that's correct. there is a little bit of isolation but i don't feel claustrophobic at all. >> reporter: back in the '60s a shirtless president lyndon johnson vacationed here. that is him with the flipped up hat. but islandia is and always has been more of a ruse than a real city. this was the only intended road. there is no courthouse. no city hall. in fact, there is not even a mayor. it was all just a classic get rich quick scheme to pry florida taxpayers for bridges and development. but then lbj signed islandia into biscayne national monument but its incorporated status remained, creating an annual bureaucratic headache for nearly 50 years. >> they have never filed their state papers. they do not cash checks that are made to them and they do not file the reports and pay their fees. >> reporter: so islandia is going away forever. >> bye. >> reporter: you never have rush-hour traffic. no bu