TV Guide National Geographic Channel Saturday

Presenting ten of history's worst maritime disasters at sea, from the Titanic to the Lusitania.

Explore Earth's harshest places, where beauty, danger and survival collide.

Examine infamous cults, where devotion turns dangerous and tragedy unfolds.

Inspect the wreck of the Mary Celestia, a Civil War ship raised by a hurricane; encounter imperial relics exposed by a drought in Iraq.

Explorers find hidden treasures such as kids' drawings on the walls of Pompeii, a mythical sculpture uncovered in the aftermath of an Indian tsunami.

An exploration into a medieval shipwreck; a Greek version of Atlantis that was submerged after a tsunami, and a Mexican temple unearthed after a drought.

Visit Cambodia, where record droughts have left a trade hub exposed; examine a submerged funerary complex in Greece, ancient mammal footprints.

U.S. Customs and Border Protection discovered a line methamphetamine hidden inside a gas tank and stopped a person carrying fentanyl inside of their body.

Spanish Coastguards tackle illegal trafficking by land, sea and air, securing a record-breaking seizure.

Darkness conceals illegal tobacco traffickers with a surprising twist.

Chasing smugglers never has a predictable ending.

Spanish Coastguards fight human trafficking with unexpected results.

Spanish Coastguards coastal patrols unveil the cunning tactics of sea mafias.

Sea, air and land units from the Spanish Coastguards strive to uncover drug trafficking plans.

Spanish Coastguards fight against drug trafficking extends to unexpected realms.

New drug trafficking strategies include stashes that are anchored to the seabed and narco-submarines.

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.

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

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.

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

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.

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.

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.