When did Horizon Season 31 Episode 5 air?
Horizon Season 31 Episode 5 aired on February 7, 1994.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
In this report by Horizon, we look at a type of cancer which cured itself. The cancer cells were killing themselves and finding out why may revolutionize future cancer treatment.
Direct answers for episode-level questions and details.
Horizon Season 31 Episode 5 aired on February 7, 1994.
This episode runs for approximately 60 minutes.
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