Season 4

A large shipment of fake fentanyl pills is intercepted. An automatic rifle with its ammunition is found inside a loudspeaker. A woman who was dealing drugs for her boyfriend is captured. Police officers try to save a man who is overdosing.

A truck is stopped and inside it they find a shipment of wet wipes, but upon closer inspection they find cocaine hidden. A US citizen is caught with thousands of Tramadol tablets hidden in his hand luggage among bags of dried fruit.

A huge shipment of cocaine is found hidden in the floor of a truck. A young man tries to enter the United States to enroll in school. A woman is caught smuggling fentanyl pills, and a drunken couple refuse to pay their fine for illegal avocados.

A woman is caught trying to enter the US with a baby that isn't hers. A man wanted for a serious crime is intercepted. A driver suffers a heart attack while crossing a bridge, and a shipment of coconut oil is discovered to contain methamphetamine.

Methamphetamine is found in a shipment of broccoli, an elderly man tries to smuggle pills in protein powder, and a woman receives a humanitarian visa to see her dying son.

Money and guns belonging to a cartel are found in a car, an illegal shipment of exotic reptiles is discovered in a van, and a man is caught smuggling medication.

An armed robber on the run is captured at the border, a drunk driver causes a three-car crash on a bridge, and cocaine is found hidden inside office furniture.

Thousands of dollars of cartel cash are found hidden in an engine, an intoxicated 17-year-old requires urgent medical treatment, and cocaine is found in bags of rubbish.

Cocaine is found hidden inside the wall of a refrigerated truck, and a Honduran immigrant fleeing gang violence applies for asylum in the US.

A shipment of meth disguised as concrete is intercepted, and officers interview a Haitian immigrant who has crossed nine countries on foot to reach America.