4 Tymor
24 Pennod
Hell Below - Season 3 Episode 3
A German U-boat commander launches a shocking attack at the heart of the Royal Navy.
- Blwyddyn: 2024
- Gwlad: United States of America, Canada
- Genre: Documentary
- Stiwdio: National Geographic, Smithsonian Channel
- Allweddair: submarine, world war ii, cold war
- Cyfarwyddwr:
- Cast: