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
S1E9 7.8
Level X

The CDC teams learns the real purpose of the infection and Alan and Julie make a perilous journey to retrieve the canister that has the original source virus.

#2
S1E8 7.6
Bloodline

Alan risks his life to save his brother Peter from Ilaria CEO Constance Sutton, only to see him re-captured by Vectors. Julia Walker deals with the mystery of her "cure" while her half- brother Daniel confronts their father, Dr. Hatake, about being abducted as a child.

#3
S2E1 7.6
San Jose

15 months after the events at Arctic Biosystems, new CDC team with the addition of biotoxicologist Kyle Sommer respond to a potential outbreak on a Windjammer in the Northern Pacific. Their search leads them to an island occupied by a mysterious cult led by the charismatic Michael. Meanwhile, 30 years in the future, Walker arrives at the same island searching for Alan Farragut.

#4 Cross-Pollination S2E7 7.6
#5 Single Strand S1E4 7.5
#6 Survivor Zero S1E7 7.5
#7 Dans L'Ombre S1E13 7.5
#8 Pilot S1E1 7.4
#9 The White Room S1E5 7.4
#10 Fushigi S1E10 7.4

Lowlights

#26 S2E11 Plan B 7.0

The Navy prepare to implement Plan B, a final solution to ensure that the virus and everyone infected with it never make it off the island.

#25 Mother S2E10 7.0
#24 Ectogenesis S2E9 7.0
#23 The Ascendant S2E12 7.1
#22 M. Domestica S2E6 7.1

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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