1 Séasúr
30 Eachtra
History Specials - Season 1 Episode 173
On Target Earth, a 2-hour special on H2, scientists, government officials and other experts examine earth's infrastructures and life-support systems to theorize how humans would fare in an alien attack.
- Bliain: 2013
- Tír:
- Seánra: Documentary
- Stiúideo:
- Eochairfhocal:
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