TV Guide National Geographic Channel Sunday

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

Homeland Security Investigations finds cocaine hidden in frozen avocado paste; Customs and Border Protection recovers stolen cars.

U.S. Customs and Border Protection in McAllen, Texas, faces a possible bomb; Homeland Security Investigations arrests fentanyl traffickers.

Homeland Security Investigations follows a vehicle that is transporting methamphetamine; U.S. Customs and Border Protection seizes looted Ukrainian relics.

United States Customs and Border Protection at Dulles International Airport finds outbound drugs; Border Patrol tracks human smugglers.

HSI in San Diego tracks a suspicious vehicle for 48 hours, leading them to a stash house; CBP meticulously screens outbound travelers at Dulles.

Border Patrol searches for smugglers along the interstate in Mississippi, and a suspect flees arrest and bring in the K9 and set for a search in the woods.

In 2007, Los Angeles was in shock when four shark attacks happened in just three months.

Director James Cameron debunks myths about the infamous shipwreck and whether or not Jack Dawson, played by Leonardo DiCaprio, could have survived.

Using cutting-edge scanning technology and state-of-the-art CGI, a team of experts produces the first high-res, 3Ddigital twin of the wreck of the Titanic.

Celebrating the film that redefined Hollywood, 50 years after its premiere, and charting the extraordinary journey from bestselling novel to the iconic film.

Bertie Gregory heads to South Africa for his most audacious mission yet, to dive with one of the ocean's most famous & feared predators, the great white shark.

British wildlife filmmaker and explorer Bertie Gregory is in the Azores islands in the Atlantic Ocean to film a spectacular predator feeding frenzy.

Bertie arrives in the Serengeti as the spectacular wildebeest migration kicks off and to film the fastest land animal on Earth: the cheetah.

Captain Bruce and the Wildcard crew target 45 tons of mackerel in four months.

The Wild Card crew heads into port with 10 tons of prized Spanish mackerel.

The Wild Card crew breaks their losing streak, smashing their weekly target.

Bruce makes a gamble that may cost dearly or set them up for a dramatic victory.

After landing a record haul, the Wild Card crew faces a new set of challenges.

Captain Bruce learns his mother suffered a stroke; Tiger takes over as captain.

Bruce makes a gamble that may cost dearly or set them up for a dramatic victory.

After landing a record haul, the Wild Card crew faces a new set of challenges.

Captain Bruce learns his mother suffered a stroke; Tiger takes over as captain.

A look is taken at aspects of daily life for citizens of the highly secretive nation, and how the role of government shapes the way in which individuals behave.

North Korea embraces cyber-crime for profit and disruption with a 6000 strong army of cyber criminals worldwide.

North Korea is a James Bond villain in the form of a brutal dictatorship, self-isolated from the global community as they pick its pockets.

If something happened to the current leader of North Korea, who would be the next in line?