- [Narrator] On Nazi Mega Weapons,
when England's Channel
Islands are captured,
Hitler transforms them.
- This place is Fort Knox times 10.
- [Narrator] Bristling
with gigantic cannons.
- The gun could fire 30 miles.
- [Narrator] And impenetrable structures.
- Seven feet of reinforced concrete.
- It's more like a medieval castle.
- [Narrator] Hitler's island megafortress.
- [Narrator] The most heavily
fortified place on Earth.
- [Narrator] On Nazi Mega Weapons.
Tuesday, April 11th, at
eight, seven Central.
Only on PBS.
