When did Horizon Season 28 Episode 2 air?
Horizon Season 28 Episode 2 aired on January 14, 1991.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
This Horizon episode tells the story of the top secret experiments carried out to test the effects of mustard gas.
Direct answers for episode-level questions and details.
Horizon Season 28 Episode 2 aired on January 14, 1991.
This episode runs for approximately 60 minutes.
Comments coming soon
Discuss episodes with other viewers