When did Horizon Season 57 Episode 3 air?
Horizon Season 57 Episode 3 aired on March 23, 2020.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

The unknown story of the worst child-poisoning case since thalidomide, featuring a landmark legal battle by a group of mothers determined to uncover the truth.
Direct answers for episode-level questions and details.
Horizon Season 57 Episode 3 aired on March 23, 2020.
This episode runs for approximately 60 minutes.
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