Join Steve Backshall in uncharted territory to uncover the world’s last unknown places.
Watch on the Free PBS App
PBS KIDS Shop
Featured on Shop
Use one of the services below to sign in to PBS:
You've just tried to add this video to My List. But first, we need you to sign in to PBS using one of the services below.
You've just tried to add this show to My List. But first, we need you to sign in to PBS using one of the services below.
Providing Support for PBS.org
Learn More about PBS online sponsorship
NOVA3D Spies of WWII
3D Spies of WWII Preview
NOVA reveals how the Allies used special aerial photos to deal a dire blow to the Nazi.
Preview: S39 Ep3 | 30s
Share this video:
Share this video on FacebookFacebookShare this video on TwitterTwitter
Sneak Peek: 3D Spies of WWII
Premiering January 18, 2012 at 9pm on PBS
Clip: S39 Ep3 | 5m 16s
Support for PBS.org provided by: