TV Guide National Geographic Channel Wednesday

Will ventures deep into the Ecuadorian Amazon on an expedition in search of deadly creatures; they abseil 200 feet into a cave network.

Will ventures deep into the Ecuadorian Amazon on an expedition in search of deadly creatures; they abseil 200 feet into a cave network.

Early spring brings change and deadly risks to rural Alaskans.

Nature's bounty shifts with the change of seasons, and the next generation seeks out its rewards and must anticipate the dangers.

It's spring and by hell or high water, the next generation will stop at nothing to replenish their vital meat stores and reap nature's bounty.

Alaskans must harness nature's resources in order to survive in the Arctic.

Big mountain freestyle skier Angel Collinson had a fall that sent her tumbling 1,000 feet down the side of a mountain; Collinson looks back on the accident.

A lost suitcase from Vietnam hides a shocking secret for its owners.

Flights for two women were paid for by a stranger, which raises red flags.

A bulk carrier's security breach shocks officers; a woman's luggage hides a massive illegal import and a family's apology won't save them.

A man's drug test shocks his fiancé and may hide a huge secret.

A woman's bizarre bust shocks officers and a karaoke machine hides drugs.

A tobacco bust leads to a syndicate and a rice cooker hides a secret.

A traveler forgets his suitcase lock combination; a mailed backpack doesn't match its declared items list; exotic food all raise alarms.

A martial artist's cologne isn't what it seems; a Bhutanese couple carries a prohibited item; a package contains something deadly.

A woman crossing the border in Buffalo, N.Y., finds herself in a salty situation.

At the JFK cargo facility, a large shipment of steel coffee mugs served up a huge wake-up call.

At John F. Kennedy International Airport, an agricultural inspector says a fond farewell to his partner of 8 years.

U.S. Customs and Border Protection must figure out what to do when an arithmetic book isn't included on the manifesto.

A U.S. Customs and Border Protection canine is on the hunt for concealed contraband.

A traveler isn't blowing smoke when it comes to declaring her cigarettes.

Officers are on high alert after an American declares he is packing heat.

CBP has a problem with a traveler when they discover undeclared meat in his fiancé's luggage.

Handmade clothes with cocaine inside are confiscated by watchful authorities; transportation boxes are shown to conceal hidden smuggling seals.

Hidden stashes inside blocks of metal are uncovered by investigative authorities; a person attempts to hide drugs inside the seams of their jacket.

Various methods for hiding cocaine are detected and exhibited by customs agents as they attempt to fight the seemingly endless flow of narcotics at an airport.

Law enforcement officers and anti-drug agents at a Peruvian airport encounter creative methods of concealment, including the use of toys to hide cocaine.

Authorities seize one of the largest shipments of cocaine ever confiscated, and they confront the elderly woman who is accused of making the smuggling attempt.

Drugs hidden in a footstool, and luggage with some egg-stra ingredients.

Treasured heirlooms under fire, and an assortment of winged specimens.

Authorities discover cocaine that has been inserted into pieces of clothing and built into boxes; officers find cocaine hidden inside of a suitcase.

A new method to hide cocaine is developed by a highly creative female smuggler, but authorities discover her efforts, and take a look at new countermeasures.

Drugs hidden in a footstool, and luggage with some egg-stra ingredients.

Treasured heirlooms under fire, and an assortment of winged specimens.

CBP has a problem with a traveler when they discover undeclared meat in his fiancé's luggage.

Officers are on high alert after an American declares he is packing heat.

A traveler isn't blowing smoke when it comes to declaring her cigarettes.

A U.S. Customs and Border Protection canine is on the hunt for concealed contraband.

U.S. Customs and Border Protection must figure out what to do when an arithmetic book isn't included on the manifesto.

At John F. Kennedy International Airport, an agricultural inspector says a fond farewell to his partner of 8 years.

At the JFK cargo facility, a large shipment of steel coffee mugs served up a huge wake-up call.

A woman crossing the border in Buffalo, N.Y., finds herself in a salty situation.