TV Guide National Geographic Channel Saturday

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

A shipwreck is thought to be a lost flagship from the War of 1812, and an artist uncovers her ancestor's link to the burning of the White House.

The true story of one of the darkest crimes on the high seas, the sinking of the MV Lucona and its crew, all to claim a massive insurance payout.

Lost wrecks reveal how the Mob gained power and wealth in 1920s America.

Archaeologists uncover the truth behind the legend of a treasure ship; beachcomber finds porcelain and beeswax from a mystery shipwreck on Manzanita Beach, Ore.

A team of experts explores evidences of underwater cities to determine if these cities existed as ancient sites or if they were merely geological accidents.

Archaeologists uncover the truth behind the legend of a treasure ship; beachcomber finds porcelain and beeswax from a mystery shipwreck on Manzanita Beach, Ore.

In the African desert country of Mali, rare desert elephants must migrate for food and water.

The chilling story of how a crew of workers managed to escape an oil-rig explosion with fire surrounding all of them in the Gulf of Mexico.

The mind of the Supreme Leader of North Korea, Kim Jong Un, is explored, as he tries to improve his dysfunctional kingdom.

The Supreme Leader of North Korea, Kim Jong Un, tries his hand at diplomacy by seeking legitimacy for his totalitarian regime.

A small town near Korea's capitol city serves as the starting point for rebellion as the country struggles to break free from Japanese imperialist rule.

The unique bond between father and son in the country of North Korea is shown as a close look is taken at the dynamics between Kim Il Sung and Kim Jong Il.

A loss of support from the Soviet Union forces North Korea to find answers to the problems it has faced continuously regarding economic stability.

A power shift within North Korea occurs suddenly as ruler Kim Jong Il suddenly dies, and a look is taken at the efforts made by his son, Kim Jong Un.

CBP discovers ketamine and human remains in packages from Europe; U.S. Border Patrol intercepts smugglers bringing migrants across the Rio Grande.

Undercover Homeland Security Investigations runs multiple undercover drug deals; Customs and Border Protection finds cocaine hidden in oatmeal.

U.S. Customs and Border Protection finds $200,000 worth of weed in some luggage; Homeland Security Investigations disrupts a Colombian counterfeit ring.

HSI uncovers a new street drug during a controlled delivery; CBP finds invasive snails in the mail at JFK and 16 kilos of coke in a bumper in El Paso.

A mother crossing by car with her kids is caught smuggling cocaine in El Paso, Texas; AMO shoots out the engine of a boat loaded with coke in Puerto Rico.

Homeland Security Investigations runs down a drug smuggler in a parking lot; U.S. Customs and Border Protection finds ancient artifacts.

HSI tracks a shipment of $12.6 million worth of cocaine hidden in gardening pots; CBP seizes illicit ammo and cash traveling to Mexico.

HSI chases fleeing coke smugglers near a school; CBP finds shipments of pills, ketamine and counterfeit cash and stops knockoff shoes at the border.

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

HSI tracks a shipment of $12.6 million worth of cocaine hidden in gardening pots; CBP seizes illicit ammo and cash traveling to Mexico.

HSI chases fleeing coke smugglers near a school; CBP finds shipments of pills, ketamine and counterfeit cash and stops knockoff shoes at the border.

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.

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

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