History & Warfare Now

A vast network of Nazi bunkers buried in the Hague tells the story of the greatest battle of WWII that never was.

Secret Nazi Bases

Underground Terror

Scientists in Kamienna Gora work to keep the Luftwaffe flying; they may also be building Hitler's next revenge weapon.

Terror Out of Sight

Coastal bases, mysterious installations, and cutting-edge technology reveal the Nazi reign of terror over the Atlantic.

Run Silent Run Deep

Allied forces stumble across a sprawling complex in the French countryside with bunkers fit for the Fuhrer.

Into the Wolf's Den

Watch TV Networks, Shows and Movies | DIRECTV

pageProperties

The latest movies and must watch shows!

referenceIdentity

scrollToTop

tvGuideButtonPanel

Max with DIRECTV

The second season of The House of the Dragon premieres 6/16. Watch on the Max app, HBO Channels or On Demand.

Data/messaging rates may apply for app download/usage. Max subscription required.

Welcome to your ultimate entertainment destination. Watch Special Ops: Lioness and more, all in one network.

Watch exclusive original series and the best of Hollywood with iconic and new blockbusters—uncut and commercial-free.

MGM+ is a trademark of Metro-Goldwyn-Mayer Lion Corp. All copyrights, trademarks, and other intellectual property or proprietary rights are the property of their respective owners.

Watch visionary original series and hit movies like Power Book II: Ghost, John Wick: Chapter 4, and much more.

DtvEntertainmentCarousel

tvGuideSearchButton

Uncovering and examining hidden structures built by the Nazis, from tunnels to towers, artillery sites, resistance nests and communication centers.

S3 E4 | Underground Terror