Gangland

A look at one of the most powerful Hispanic gangs from Los Angeles, known as the Avenues.

The gang known as the Pagans are considered a major dealer in the methamphetamine trade, originating in Maryland during the 1950's and has expanded to 44 chapters with over 900 members along the east coast.

The Latin Kings have roots tracing back to the 1940s in Chicago, and are regarded as the largest and most brutal Latino gang in the U.S.A..

A gang of ruthless contract killers, The Best Friends, have roamed Detroit's east side since 1985 and have been linked to more than 80 murders, according to the federal officials.

Memphis, Tenn. is the site where a group of drug dealers and killers formed the gang, the Love Murdering Gangsters (LGM), and is regarded as the most notorious gang in the Mississippi Delta.

There are an estimated 10,000 gang members who call St. Louis their home, which includes the notorious gang, Boys of Destruction.

The white supremacist Aryan Brotherhood started as a means of survival, has now become the largest prison gang in Texas and has spread to the suburbs of Dallas.

A task force was formed in 2003 to take down the Hidden Valley Kings, a gang which ran the drug trade in Charlotte, N.C.

The Hoover Criminals are a nightmare for those in Portland, Ore., and have moved in from Los Angeles during the 1990's to get in on the drug business, and call themselves "Everybody Killers."

Colorado's largest motorcycle gang, the Sons of Silence, has increased to 36 chapters around the world since being formed in the 1960's. Agent go undercover to infiltrate the groups.

Dead Man, Inc.are the biggest threat inside the Maryland prison system and have grown to 14,000 members within a decade and spread across the country.

The Mongols and Hells Angels are a pair of outlaw motorcycle gangs entrenched in a brutal California turf war.