Mexican cartels dominate an extremely lucrative industry exporting undocumented migrants and squeezing them for cash. Thousands of Central Americans head north to the US border, lured by hopes for a brighter future, but people smugglers, who are often linked to cartels, make it difficult to cross without their supervision, and for a price.

Underworld Inc. follows the dirty drug dollars from American trap houses to wholesalers and transporters, funnelling billions into Mexico’s money laundry. US authorities are closing in on cartel cash. If drug lords want their narco cheddar cleaned and moved into the banking system, they have to get it to Mexico. Working to stem the tide, the cops hit stash houses, and interdiction teams tail cars suspected of smuggling millions. South of the border, launderers use money changers to turn drug profits to pesos for onward investment in front companies and bogus construction projects. If local authorities pry into these shady businesses, they get warned off – cartel style.

Knock off Pharma is on the internet, in the pharmacies and on the streets. The trade is getting ugly and the consequences are deadly.

From card cheats, to armed robbers, criminals across America make a beeline for the Casinos of Las Vegas. To defend themselves casinos have become crime fighting organizations. Criminals react to casino crackdowns with more inventive means of attack. The casinos need to stay on top. At stake is their very survival.

The illegal, multibillion-dollar global sex trade includes brothels, massage parlors and online escort agencies and is one of the oldest professions. Take a look inside this illegal trade where pimps treat women as commodities — bought and sold, used and abused, then discarded.

Increased automobile security means that car criminals are becoming more ingenious than ever. Gangs are working together to steal cars — for them car theft can be more profitable than selling drugs. In Santa Maria, California, three cars are stolen every day and police are now targeting the thieves rather than recovering vehicles. The criminals, meanwhile, rush to get the cars out of state, and then — via corrupt shippers — overseas. In West Africa, a criminal class has arisen that is willing to pay top dollar for high-end stolen U.S. cars.

In America, 14 people die each day waiting for a kidney transplant. Meanwhile, the black market organ trade is thriving, and gangsters with global reach are pocketing easy money. Desperation drives this illegal trade in human spare parts, but the medical community is sounding the alarm and international law enforcement is in hot pursuit of the traffickers.

Anything and everything can be faked: watches, purses, shoes, electronics, smartphones. Go underground to see the breathtaking enterprise and expertise of counterfeiting — an economy that turns over an estimated $500 billion a year.