Horizon
S17 · E9 — Portrait of a Poison
S17:E9 · Portrait of a Poison
25 episodes in this season
The Ghost Of The Amoco Cadiz
60 min
You Are Old, Father William
Cleared for Take-Off
A Sporting Chance
The Cancer Detectives of Lin Xian
The Big If...
Cash from Trash
Encounter with Jupiter
Portrait of a Poison
Magnet Earth
Goodbye Gutenberg
Invasion of the Virions
Beyond the Milky Way
Little Boxes
The Other Kenya
Moving Still
The Way Out
The Dead Sea Lives
Once in a Million Years
Smoker's Luck
Behind the Horoscope
The Mondragon Experiment
The Spike
The Slatemakers
Anatomy of a Volcano
