Episode Ratings Grid

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Episode Power Rankings

The peaks and the valleys. Find the essential episodes — and the ones to skip.

#1
S9E10 8.7
Waterloo: Part 2

Time is running out for Boyd as he fights for justice against a powerful adversary.

#2
S9E9 8.6
Waterloo: Part 1

Boyd investigates the disappearance of 16 homeless boys from Waterloo Bridge in the 1980s.

#3
S6E12 8.5
Yahrzeit: Part 2

As Ben goes missing, Boyd and his team try to force the truth out of a confused David. Boyd grows increasingly close to Sarah, and Stella travels to Poland to investigate the true story.

#4 Harbinger: Part 2 S9E2 8.4
#5 Fugue States: Part 2 S4E6 8.3
#6 Straw Dog: Part 1 S5E7 8.3
#7 Straw Dog: Part 2 S5E8 8.3
#8 Cold Fusion: Part 2 S5E12 8.3
#9 Yahrzeit: Part 1 S6E11 8.3
#10 Cold Fusion: Part 1 S5E11 8.2

Lowlights

#92 S7E10 Wounds: Part 2 6.7

The team find out that a body discovered in a disused tunnel is that of salesman Chris Dearden, who went missing in 1996. He was on a self-empowerment weekend with his colleagues when he died.Could one of them be responsible?

#91 Wounds: Part 1 S7E9 6.7
#90 Deus Ex Machina: Part 2 S6E4 6.7
#89 Deus Ex Machina: Part 1 S6E3 6.7
#88 Substitute: Part 2 S8E6 7.2

The Quality Arc

Each point is an episode, plotted in order. Colored bands mark season boundaries. Look for the rise, the plateau, or the decline.

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Episode Engagement

High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

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Series Trajectory

One point per season. Smooths out the episode-to-episode noise to reveal the bigger arc.

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Season Momentum

Did each season build or fizzle? Green means the finale outscored the premiere. Red means the opposite. Longer arrows, bigger swings.

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Season Consistency

How steady is each season? Tightly clustered dots mean reliable quality. Scattered dots mean a wild ride.

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