Poster of Cast and Crew in Horizon - Keen as Mustard (Season 28 - Episode 2) - Keen as Mustard

Horizon - Season 28 - Keen as Mustard (Episode 2)

Plot: This Horizon episode tells the story of the top secret experiments carried out to test the effects of mustard gas.
Episode Aired On:
Monday, January 14 1991
34 years ago