TV Guide National Geographic Channel Wednesday

The villagers of Port Protection are back to paving with good intentions.

When a truck crashes into a snowbank in the mountains, Thord and rookie Terje must put their lives at risk to save its valuable cargo.

At the onset of the winter season, Alaskans face new threats to their survival, but the dangers of the Arctic year have only just begun.

As winter rages on, Alaskans must adapt to increasingly erratic weather to survive; Sue Aikens stockpiles meat before the caribou herd migrates.

As the deep cold of dark winter persists, Alaskans must become one with the land if they are to carry on their way of life; Johnny hunts for a food source.

As daylight fades, Alaskans contend with the animals and predators lurking in the shadows; Sue Aikens investigates a looming threat in Kavik.

A growing dispute between two cartels impacts the escalating drug trade within the city of San Francisco as each group battles for control of the markets.

Various celebrities spend time in Las Vegas, and they go on a search for drugs of different types that would allow them to engage in a variety of activities.

A former British gangster guides the crew to a hash factory in the mountains; customs agents near Gibraltar seize 100 kg of hash and barely impede the flow.

A dealer buys large quantities of heroin and drives up I-95 to sell it in Baltimore; an addict runs an unsanctioned cab service to earn drug money.

Oakland, the eighth-largest city in California, has an out-of-control drug trade, but its detectives still work around the clock to bring down the ringleaders.

Homeland Security Investigations arrests date-rape drug traffickers; Customs and Border Protection stops a car that is filled with cocaine.

Customs and Border Protection and Homeland Security Investigations work together to take down traffickers of coke and marijuana.

Customs and Border Protection seizes fentanyl, cocaine and heroin; Homeland Security Investigations in Miami intercepts outbound guns.

Customs and Border Protection seizes suitcases of drugs bound for the United Kingdom and looted ancient statues.

Homeland Security Investigations arrest a counterfeit passport ring; Customs and Border Protection seizes methamphetamine at a railyard.

American Maritime Officers in Puerto Rico finds cocaine on a ferry; Customs and Border Protection stops travelers with opioids.

Homeland Security Investigations arrests smugglers of methamphetamine in San Diego, Calif.; Customs and Border Protection intercepts drug body carriers.

Air and Marine Operations chases a boat tossing cocaine overboard; Customs and Border Protection seizes pills from a pilot.

A young CIA officer is kidnapped abroad, triggering a tense 24-hour standoff.

Homeland Security Investigations finds illegal guns in Miami; Customs and Border Protection in Texas seizes meth that is worth millions of dollars.

Air and Marine Operations chases a boat tossing cocaine overboard; Customs and Border Protection seizes pills from a pilot.

A young CIA officer is kidnapped abroad, triggering a tense 24-hour standoff.

Divers abandon their anti-drug operation to deal with a potential drowning.

The Coastguard and other security teams battle enemies on all fronts.

A high-speed chase tests the limits of the Coastguard's fastest boats.

A suspicious speedboat immediately raises a red flag at headquarters.