Season 1 · Episode 173
Aired Sep 13, 2013
Target Earth
Fri, Sep 13, 2013
·
89 min
0 of 32 watched this season
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.
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Airs
Fri, Sep 13, 2013
89 min
Show
History Specials
32 episodes
Episode
S1 · E173
in History Specials