Episode Ratings Grid

Every episode at a glance, color-coded by rating. Rows are episode numbers within each season, columns are seasons.

M
S1
E1
7.6
E2
7.3
E3
7.4
E4
7.3
Avg
7.4
Good
SeriesScores.com

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 Episodes

#1 7.6

S1E1 Episode #1.1

Detective Inspector Brent Hyatt and Detective Sergeant Chris Hoar are summoned to University College Hospital in London to interview a patient with an extraordinary story to tell.

#2
S1E3 7.4

Episode #1.3

A team of detectives led by Timmons’ ‘best man’ Brian Tarpey arrive in Moscow hoping to interview Lugovoy and Kovtun, now the prime suspects behind Litvinenko’s murder.

#3
S1E2 7.3

Episode #1.2

Radiation teams swarm across London in a rush to secure potentially contaminated sites visited by the Russian spy.

  1. 4. S1E4 "Episode #1.4" 7.3

📉 Bottom Episodes

#4
S1E4 7.3

Episode #1.4

With their investigation complete, Timmons’ team submit their file to the Crown Prosecution Service, who bring charges for Litvinenko’s murder.

  1. 3. S1E2 "Episode #1.2" 7.3
  2. 2. S1E3 "Episode #1.3" 7.4
  3. 1. S1E1 "Episode #1.1" 7.6
SeriesScores.com

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 6.56.97.37.78.18.5 Rating 1 2 3 4 Episode 10 9 8 7 6 5
SeriesScores.com

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:
1 Standouts
1 Infamous
0 Hidden Gems
2 Forgettable
Standouts Infamous Hidden Gems Forgettable Global: 7.5 7.27.37.47.67.77.8 Rating 136 147 159 172 186 Votes (log scale)
Top Standout: S1E1 Episode #1.1
Most Infamous: S1E2 Episode #1.2

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.

SeriesScores.com