The Expanse poster

The Expanse

2015-2022 6 seasons

8.5 Top 13%

(188,688 votes)

62 episodes

IMDb
This show averages 8.4, which is 0.9 points above the global average of 7.4 Top 15%
7.4 8.4 0 1 2 3 4 5 6 7 8 9 10 IMDb Rating
All 806,989 TV Episodes
This Show (62 episodes)
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S1
S2
S3
S4
S5
S6
E1
7.5
8.0
8.5
8.4
8.0
7.6
E2
7.5
8.6
8.7
8.4
8.4
8.1
E3
7.8
8.0
8.6
8.2
8.5
8.2
E4
8.5
8.8
8.7
8.1
9.3
7.8
E5
7.6
9.4
9.3
8.1
8.6
8.2
E6
7.7
8.3
9.4
8.5
8.0
8.9
E7
7.7
7.9
8.2
8.3
7.8
E8
8.5
8.0
9.0
8.5
7.5
E9
8.4
8.0
8.2
9.0
7.8
E10
8.5
8.1
8.7
8.8
8.6
E11
8.6
8.4
E12
8.5
8.6
E13
8.7
9.3
Avg
8.0
8.4
8.7
8.4
8.2
8.1
Excellent
Great
Good

The Quality Arc

Each point is an episode, plotted chronologically. The colored bands mark season boundaries. Look for upward or downward trends to see if quality improved or declined over time.

S1 S2 S3 S4 S5 S6 77.68.28.89.410 Rating 7 14 21 28 35 42 49 56 63 Episode 10 9 8 7 6 5

Episode Engagement

Vote count shows how many people cared enough to rate. High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

Rating threshold:
31 Standouts
0 Infamous
31 Hidden Gems
0 Forgettable
Standouts Infamous Hidden Gems Forgettable Global: 7.5 7.27.68.18.59.09.4 Rating 2k 3k 4k 5k 6k Votes (log scale)
Top Standout: S2E5 Home
Best Hidden Gem: S4E9 Saeculum

Episodes plotted by rating vs. vote count. The vertical line marks the rating threshold (7.5). More votes = more engagement. Toggle above to compare against global or show-specific median.

Season Trajectory

A simplified view: one point per season. This smooths out episode-to-episode noise to show the overall arc of the series.

77.588.599.5 Rating S1 S2 S3 S4 S5 S6 Season 8.0 8.4 8.7 8.4 8.2 8.1 10 9 8 7 6 5

Season Momentum

Did each season build momentum or fizzle out? Green arrows mean the finale rated higher than the premiere. Red means the opposite. Longer arrows = bigger swings.

5678910 Rating S1 7.5 8.5 +1.0 S2 8.0 8.7 +0.7 S3 8.5 9.3 +0.8 S4 8.4 8.8 +0.4 S5 8.0 8.6 +0.6 S6 7.6 8.9 +1.3

Season Consistency

Some seasons are reliable bangers. Others are hit-or-miss. Each dot is an episode. Tightly clustered dots mean consistent quality. Scattered dots mean a mixed bag.

78910 Rating S1 Typical avg 8.0 S2 Typical avg 8.4 S3 Steady avg 8.7 S4 Steady avg 8.4 S5 Uneven avg 8.2 S6 Typical avg 8.1 Episode Premiere/Finale

Each dot is an episode. Clustered dots = consistent quality. Scattered dots = variable season. Hover for episode details.

Episode Power Rankings

The best and worst episodes at a glance. Use this to find must-watch episodes or ones you might want to skip.

🏆 Top 10 Episodes Season 3 dominates (4/10)

  1. 1 S2E5 Home 9.4
  2. 2 S3E6 Immolation 9.4
  3. 3 S3E5 Triple Point 9.3
  4. 4 S3E13 Abaddon's Gate 9.3
  5. 5 S5E4 Gaugamela 9.3
  6. 6 S3E8 It Reaches Out 9.0
  7. 7 S4E9 Saeculum 9.0
  8. 8 S6E6 Babylon's Ashes 8.9
  9. 9 S2E4 Godspeed 8.8
  10. 10 S4E10 Cibola Burn 8.8

📉 Bottom 5 Episodes Season 1 dominates (3/5)

  1. 62 S5E8 Hard Vacuum 7.5
  2. 61 S1E2 The Big Empty 7.5
  3. 60 S1E1 Dulcinea 7.5
  4. 59 S6E1 Strange Dogs 7.6
  5. 58 S1E5 Back to the Butcher 7.6
62 Total Episodes
9.4 Highest Rating
7.5 Lowest Rating
1.9 Range