

Documentary
The Best Episodes of Horizon Season 27
Every episode of Horizon Season 27 ranked from best to worst. Discover the Best Episodes of Horizon Season 27!

Documentary
The Best Episodes of Horizon Season 27
Every episode of Horizon Season 27 ranked from best to worst. Discover the Best Episodes of Horizon Season 27!
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Seasons60
Season 27 Ratings Summary
"Oil Spill" is the best rated episode of "Horizon" season 27. It scored /10 based on 0 votes. Directed by Unknown and written by Unknown, it aired on 1/8/1990. This episode is rated 0.0 points higher than the second-best, "Medicine 2000".