Episode 1
Camera crews examine fentanyl's impact on addicts and how overwhelmed customs agents are striving to stop the flow. Also, a Boston dealer talks money.
Episode 2
A large shipment of cocaine is transported from rural Colombia to bustling Madrid. Smugglers beware: Police may be waiting to pounce.
Episode 3
As dealers and smugglers take advantage of addiction in Los Angeles, law enforcement agents search for drugs on both land and sea.
Episode 4
In the port city of Rotterdam in the Netherlands, cocaine kingpins employ fearsome hitmen to intimidate and silence suspected informers.
