Episode Ratings Grid

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Great
Good

Episode Power Rankings

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

#1
S3E4 8.6
Return to Pontarfynach

With time running out, Mathias must solve the mystery of Laura Dean's death whilst trying not to get distracted by his personal problems.

#2
S3E3 7.9
Both Barrels

Laura Dean, a curator, is discovered in a shallow grave in remote woodland. Mathias and his team must delve into the young victim's life to unearth some shocking secrets. Meanwhile, Prosser - still reeling from the death of Iwan Thomas - calls on the help of retired Chief Inspector Robert Owen.

#3
S2E4 7.8
The Sound of Souls

DCI Mathias is tasked with solving the case of murdered Aron Bowen.

#4 Aftermath S3E1 7.8
#5 A Poacher's Discovery S3E2 7.8
#6 The Girl in the Water S1E4 7.7
#7 The Tale of Nant Gwrtheyrn S2E2 7.7
#8 Dark River S2E3 7.7
#9 Ceredigion S2E1 7.6
#10 Devil's Bridge S1E1 7.5

Lowlights

#13 S1E2 Night Music 7.3

The body of Idris Williams is discovered at a lonely farm. The investigation in to the death of the sixty-nine year old victim uncovers a brutal past.

#12 In the Dead of Night S2E0 7.4
#11 Penwyllt S1E3 7.5
#10 Devil's Bridge S1E1 7.5
#9 Ceredigion S2E1 7.6

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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