Two men are found fighting on security cameras; an impromptu jail tattoo parlor is discovered.. Convicts in Las Vegas, Fort Worth and Tampa, Fla.

A vice unit interrogates several individuals accused of sex crimes; threats provoke a situation. Facilities in Tacoma, Wash., Cincinnati and Las Vegas.

Life behind bars in Portland, Ore., Las Vegas and Fort Worth.

Life behind bars in Tampa, Fla., Fort Worth and Las Vegas.

A man attempts to eat marijuana in jail; the Special Detention Unit investigates forbidden letters. Facilities in Paterson, N.J., Tampa, Fla., and Las Vegas.

Inside facilities in Tampa, Fla., Portland, Ore., and Phoenix.

Individuals enter facilities in Paterson, N.J., Tampa, Fla., and Portland, Ore.

A woman is placed into a restraint chair during intake; questions are asked after a fight occurs. Inside jails in Las Vegas and Paterson, N.J.

After refusing a breathalyzer test, an irate man bangs his head against plexiglass. Inmates experience their first moments in facilities in Tampa, Fla., Portland, Ore., and Paterson, N.J.

Facilities in Tampa, Fla., Portland, Ore., and Austin, Texas.

Officers fear a man may attempt to hang himself and decide to intervene; a man ends up in jail. Facilities in Tampa, Fla., and Portland, Ore.

A ruckus ensues after a man is placed in jail; secret prison communication methods are explored. Facilities in Austin, Texas; Draper, Utah; Hillsboro, Ore.

Following inmates in jails in Las Vegas, Fort Myers and Portland.

Inmates in jails in Austin, Texas, Tampa, Fla. and Modesto, Calif.

Facilities in Fort Myers, Fla., Modesto, Calif., and Las Vegas.

In his holding cell, a man fights officers after taking Xanax. Facilities in Austin, Texas; Modesto, Calif.; Memphis, Tenn.

O.J. Simpson is booked in the Clark County Detention Center in Las Vegas. Facilities in Tulsa, Oklahoma and Hillsboro, Oregon.

A man arrested during a dangerous drug deal struggles; tempers flare when a man makes threats. Jails of Portland, Ore., Tulsa, Okla., and Austin, Texas.

A man under the influence states money will buy his freedom after threatening police with a gun. Modesto, Portland, and Austin jails

After totaling his Corvette, a man is arrested for drunken driving. The jails of Portland, Ore; Santa Ana, Calif.; Tampa, Fla.

A man claims of royal lineage during a combative booking process; a man is arrested. Jails of Tulsa, Okla., Austin, Texas, and Las Vegas.

After cutting her head, a woman bites and kicks deputies; a man's tattoos are examined. The jails of Tulsa, Okla., Las Vegas, and Portland, Ore.

Jail inmates in Austin, Texas, Santa Ana, Calif., and Las Vegas.

A cell brawl escalates quickly; a woman has deep regrets after being arrested on her wedding night. The jails of Austin, Texas and Las Vegas.