Season 2 holds the highest collective average score across the series.
Season 2 Details →Lowest score variance (σ = 0.24), maintaining an average of 7.0.
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 2 seasons and 26 episodes, Helix has earned an overall series rating of 7.3 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 2, Episode 13 ("O Brave New World"), rated at an extraordinary 8.1/10 with 8 ratings. Conversely, the lowest-rated installment is Season 1, Episode 7 ("Survivor Zero"), landing at 6.6/10.
The most precipitous single-episode shift occurred in Season 2 between Episode 9 ("Ectogenesis", 7.7) and Episode 10 ("Mother", 7), a swing of 0.7 points.
Top 10 Highest Rated Episodes of Helix
| Rank | Episode | Title | Score | Votes | Air Date |
|---|---|---|---|---|---|
| #1 | Season 2, Ep 13 | O Brave New World | 8.1 | 8 | Apr 10, 2015 |
| #2 | Season 2, Ep 12 | The Ascendant | 7.9 | 10 | Apr 3, 2015 |
| #3 | Season 2, Ep 5 | Oubliette | 7.8 | 12 | Feb 13, 2015 |
| #4 | Season 2, Ep 1 | San Jose | 7.7 | 17 | Jan 16, 2015 |
| #5 | Season 2, Ep 7 | Cross-Pollination | 7.7 | 11 | Feb 27, 2015 |
| #6 | Season 2, Ep 9 | Ectogenesis | 7.7 | 11 | Mar 13, 2015 |
| #7 | Season 2, Ep 2 | Reunion | 7.6 | 13 | Jan 23, 2015 |
| #8 | Season 2, Ep 8 | Vade in Pace | 7.5 | 12 | Mar 6, 2015 |
| #9 | Season 2, Ep 11 | Plan B | 7.5 | 11 | Mar 27, 2015 |
| #10 | Season 1, Ep 8 | Bloodline | 7.4 | 14 | Feb 21, 2014 |