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
S1E5 7.7
Episode #1.5

The truth about events on board is revealed, forcing Hana to take drastic action; Tennant is put in charge of Delaney's operation, forcing Delaney to break protocol.

#2
S2E5 7.7
Episode #2.5

Hana and Brody set a trap to catch Fox, Jess enlists surprising medical help to save Ruth's life, and the true architect of the conspiracy is finally revealed.

#3
S1E4 7.5
Episode #1.4

Jess fears for her life when she becomes a target for both MI5 and a deadly assassin; Delaney uncovers a shocking truth that changes her understanding of events that night.

#4 Episode #1.6 S1E6 7.5
#5 Episode #2.4 S2E4 7.5
#6 Episode #2.6 S2E6 7.5
#7 Episode #1.3 S1E3 7.4
#8 Episode #2.3 S2E3 7.4
#9 Episode #1.2 S1E2 7.3
#10 Episode #2.2 S2E2 7.2

Lowlights

#12 S2E1 Episode #2.1 7.1

As the murder of a diplomatic courier leads DS Hana Li to London's US Embassy, MI5's Madeline Delaney receives a call about a bomb on the jet she is travelling on.

#11 Episode #1.1 S1E1 7.1
#10 Episode #2.2 S2E2 7.2
#9 Episode #1.2 S1E2 7.3
#8 Episode #2.3 S2E3 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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