Inside the World's Toughest Prisons Episode Ratings Heatmap
2016 · 7 Seasons · 27 Episodes · Overall Score: 7.9/10 (27 rated)
Season 5 holds the highest collective average score across the series.
Season 5 Details →Lowest score variance (σ = 0), maintaining an average of 10.0.
Complete Episode Rating Matrix
Interactive score chart by season and episode number. Darker green indicates higher ratings; amber and red denote lower reception.
Ratings Analysis & Trajectory
Across 7 seasons and 27 episodes, Inside the World's Toughest Prisons has earned an overall series rating of 7.9 out of 10. The series demonstrates an upward quality trajectory, with later seasons sustaining higher viewer acclaim than its debut.
The single highest-rated hour of television in the series is Season 5, Episode 1 ("South Africa: The Number Gangs Prison"), rated at an extraordinary 10.0/10 with 1 ratings. Conversely, the lowest-rated installment is Season 3, Episode 4 ("Norway: The Perfect Prison?"), landing at 6.0/10.
The most precipitous single-episode shift occurred in Season 6 between Episode 3 ("Bosnia: The Mafia Prison", 10) and Episode 4 ("Greece: The People Smugglers Prison", 7.5), a swing of 2.5 points.
Top 10 Highest Rated Episodes of Inside the World's Toughest Prisons
| Rank | Episode | Title | Score | Votes | Air Date |
|---|---|---|---|---|---|
| #1 | Season 5, Ep 1 | South Africa: The Number Gangs Prison | 10.0 | 1 | Jan 8, 2021 |
| #2 | Season 5, Ep 2 | Philippines: The War on Drugs Prison | 10.0 | 1 | Jan 8, 2021 |
| #3 | Season 5, Ep 3 | Greenland: Prison in the Ice | 10.0 | 1 | Jan 8, 2021 |
| #4 | Season 6, Ep 1 | Moldova: The Lifers Prison | 10.0 | 1 | Sep 28, 2022 |
| #5 | Season 6, Ep 2 | Cyprus: The Utopian Prison | 10.0 | 1 | Sep 28, 2022 |
| #6 | Season 6, Ep 3 | Bosnia: The Mafia Prison | 10.0 | 1 | Sep 28, 2022 |
| #7 | Season 3, Ep 1 | Costa Rica: Prison on a Knife-Edge | 8.5 | 2 | Dec 14, 2018 |
| #8 | Season 1, Ep 3 | Mexico | 8.3 | 3 | Mar 3, 2016 |
| #9 | Season 7, Ep 1 | Finland: The Free Choice Prison | 8.0 | 2 | Sep 15, 2023 |
| #10 | Season 7, Ep 2 | Czech Republic: The Crystal Meth Prison | 8.0 | 2 | Sep 15, 2023 |