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
S1E3 7.4
Episode #1.3

Vadim returns to Russia where his allegiances are tested, leading him to a risky stunt.

#2
S1E6 7.4
Episode #1.6

As the true extent of Russia's interference with the UK becomes clear, Saara and her former classmate join forces. Can they uncover the hidden code and prevent a war?

#3
S1E2 7.3
Episode #1.2

Saara befriends John, a veteran GCHQ staffer, and seeks help from Gabriel in decrypting a message in the virus. Danny signs off on Saara attending a cyber conference with US agent Kathy, aware that Russian intelligence will also be there.

#4 Episode #1.4 S1E4 7.3
#5 Episode #1.5 S1E5 7.3
#6 Episode #1.1 S1E1 7.2

Lowlights

#6 S1E1 Episode #1.1 7.2

A young intern's first day at GCHQ coincides with a major cyberattack on the UK. To win her superiors' trust, she breaks ranks to analyse the malware code without permission and uncovers a greater threat missed by others.

#5 Episode #1.5 S1E5 7.3
#4 Episode #1.4 S1E4 7.3
#3 Episode #1.2 S1E2 7.3
#2 Episode #1.6 S1E6 7.4

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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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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