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
S1E1 7.6
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.

#4 Episode #1.4 S1E4 7.3

Lowlights

#4 S1E4 Episode #1.4 7.3

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

#3 Episode #1.2 S1E2 7.3
#2 Episode #1.3 S1E3 7.4
#1 Episode #1.1 S1E1 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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