TV Guide National Geographic Channel Thursday

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.

Archaeologists explore life and death in Ancient Egypt's greatest metropolis, Alexandria.

Archaeologists explore the tactics of Egypt's Warrior Pharaoh, Ramses II, known as Ramesses the Great, the third ruler of the Nineteenth Dynasty.

Archaeologists explore hidden tombs and find spectacular mummies.

Archaeologists unearth new clues about a forgotten dynasty, the Sun Kings.

Archaeologists uncover the origins of one of history's great civilizations.

Archaeologists uncover the secrets and rivalries of Egypt's last dynasty.

Newly collected data is featured to reveal details about Mars and to simulate what it would be like to spend a single day on the planet.

The tragic events of the 1986 Space Shuttle Challenger disaster are examined through exclusive NASA recordings, interviews and journalists' reports.

The existence of Area 51 was denied by the U.S. government for more than a half century and only acknowledged in August 2013 in declassified CIA documents.

The U.S. government's secret Pentagon Program on UFO's is exposed.

Project Blue Book is launched to study the country's growing UFO problem.

United States nuclear missiles malfunction after a close encounter with Unidentified Flying Objects.

More military and commercial pilots are reporting seeing Unidentified Aerial Phenomena, or UAPs, in flight.

Area 51 in Nevada has been shrouded in secrecy for decades and is the focus of many UFO rumors.

The existence of Area 51 was denied by the U.S. government for more than a half century and only acknowledged in August 2013 in declassified CIA documents.

Detectives use DNA evidence to identify a victim of serial killer Larry Eyler, who was called the Interstate Killer and the Highway Killer.

Investigators attempt to identify a murder victim from Texas after 38 years.

DNA detectives attempt to identify a young female found dead in the desert.

DNA detectives attempt to identify a man who was crushed under ice in a railcar.

When a John Doe is found dead in an oil well in 2020 in Canton, Ohio, the DNA Doe Project uses genetic genealogy to identify the murder victim.

A 9-year-old boy's discovery that led to the uncovering of a pair of hominid skeletons in South Africa challenges assumptions about man's lineage.