Horizon Season 20 Episode 21
Episode Title: Unknown
Genre:
Documentary
Countries:
UK,
Airing Date: May 26, 1984
Runtime:50 mins
IMDb Rating:
Watch Horizon Season 20 Episode 21 full movie online free in HD with English subtitles – no download needed.
Horizon: Horizon investigates today's research into earthquakes and the usefulness of the findings.