National Geographic Channel TV Guide — Friday TV Listings & Schedule

Browse the full National Geographic Channel TV guide for Friday, 18 September 2026. 21 programmes listed , including 6 tonight. US listings updated daily — scroll down to tonight's highlights or use the day tabs above to browse the weekly schedule.

Early Morning

00:00 1h

Lost Treasures of Egypt

S4 · E6 · Secrets of the Nile Documentary

Secrets of the Nile

Archaeologists investigate how the mighty river Nile transformed ancient Egypt into one of the ancient world's greatest civilizations.
01:00 1h

Drain the Oceans

S1 · E46 · Japan's Surprise Attack Science

Japan's Surprise Attack

Experts use new technology to explore the Pacific Ocean so that they can learn detailed information about Japan's involvement in World War II.
02:00 1h

Drain the Oceans

S3 · E27 · D-Day Science

D-Day

A survey of the World War II D-Day shipwrecks sheds light on the biggest amphibious invasion in history.
03:00 1h

Drain the Oceans

The Roman Empire Science

The Roman Empire

The unexpected story of how Rome dominated the world for 500 years by conquering the sea.
04:00 1h

Drain the Oceans

S1 · E28 · The Pacific Megawrecks Science

The Pacific Megawrecks

A high-tech expedition searches for the iconic lost wrecks of the Battle of the Pacific, which was the theater of WWII that was fought in the Pacific Ocean.
05:00 1h

Drain the Oceans

S1 · E30 · Thai Cave Rescue Documentary

Thai Cave Rescue

A new 3D survey of the Tham Luang cave system in Thailand offers details about how the 12 boys were rescued from the cave after being trapped there in 2018.

Morning

06:00 1h

Drain the Oceans

S1 · E52 · The Gold Rush Science

The Gold Rush

Experts take a close look at long-lost ships on the ocean's floor to learn new details about the California and Klondike gold rushes.
10:00 1h

Trafficked with Mariana van Zeller

S4 · E10 · Caught in an African Coup True

Caught in an African Coup

Mariana's investigation into rumors of gold mining funding terrorist groups in Niger gets interrupted by a military coup that strands the team in Niger.
11:00 1h

Trafficked with Mariana van Zeller

S4 · E4 · Brides for Sale True

Brides for Sale

Mariana investigates the black-market trade in trafficked brides destined for China.

Daytime

12:00 1h

Trafficked with Mariana van Zeller

S4 · E10 · Shark Hunters True

Shark Hunters

Mariana investigates the black market for shark fins, known as finning, which is a multi-million dollar illegal trade driven by demand for shark fin soup.
13:00 1h

Trafficked with Mariana van Zeller

S4 · E1 · Cartel USA True

Cartel USA

Mariana explores the fact that the Mexican cartels are having a significant and growing influence within the United States, going beyond drug trafficking.
14:00 1h

Trafficked with Mariana van Zeller

S4 · E6 · Inside America's Militias True

Inside America's Militias

Mariana investigates the growing influence of heavily armed militias, private, often paramilitary, groups motivated by a desire to protect perceived threats.
15:00 1h

Trafficked with Mariana van Zeller

S4 · E3 · The Tranq Dope Underground Documentary

The Tranq Dope Underground

Mariana van Zeller investigates the mysterious next wave of America's opioid crisis.
16:00 1h

Trafficked with Mariana van Zeller

S4 · E9 · Underground Street Racing Documentary

Underground Street Racing

Mariana van Zeller investigates the deadly world of illegal street racing.
17:00 1h

Inside the CIA: Secrets and Spies

S1 · E6 · Marti Peterson Documentary

Marti Peterson

Marti Peterson was the widow of a CIA officer, who was killed in action, and goes undercover in Moscow during the Cold War.

Evening

18:00 1h

Inside the CIA: Secrets and Spies

S1 · E7 · Jose Rodriguez Documentary

Jose Rodriguez

Jose Rodriguez served as director of the National Clandestine Service of the CIA but faced a fallout when an enhanced interrogation program was exposed.
19:00 1h

Inside the CIA: Secrets and Spies

S1 · E1 · Kari Amelung Documentary

Kari Amelung

A young CIA officer is kidnapped abroad, triggering a tense 24-hour standoff.
20:00 1h

Inside the CIA: Secrets and Spies

S1 · E3 · Laura Thomas Documentary

Laura Thomas

A CIA veteran helps rescue people during the 2021 Afghanistan withdrawal.
21:00 1h

Inside the CIA: Secrets and Spies

S1 · E2 · Patrick Weninger Documentary

Patrick Weninger

A CIA officer must trust an al-Qaida mole and fight to keep him alive.
22:00 1h

Inside the CIA: Secrets and Spies

S1 · E5 · Darrell Blocker Documentary

Darrell Blocker

A captured teen and secret tech bring the CIA closer to the Taliban's Butcher.
23:00 1h

Inside the CIA: Secrets and Spies

S1 · E4 · Mark Kelton Documentary

Mark Kelton

The clock is ticking in the CIA's pursuit of the country's most wanted fugitive.

Early Morning

Morning

Daytime

Evening

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