#1
S2E7
The Next Pandemic
If you're not worried about a looming global pandemic, you probably should be. Are we prepared for an outbreak? Bill Gates and other experts weigh in.
Where to watch
Regional listings, not a guarantee of subscription access.
Episode Ratings Grid
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Episode Power Rankings
The peaks and the valleys. Find the essential episodes — and the ones to skip.
#2
S1E19
The World's Water Crisis
The global water crisis is at an inflection point. How do we price our most valuable resource, while also ensuring access to it as a human right?
#3
S2E2
Billionaires
There are more billionaires than ever. But how does this vast accumulation of wealth affect the world? Mark Cuban and Bernie Sanders offer insights.
#4
Animal Intelligence
S2E3
#5
The Future of Meat
S2E8
#6
Chess
S3E6
#7
Time
S3E12
#8
Designer DNA
S1E2
#9
Dogs
S3E4
#10
Can We Live Forever?
S1E15
Lowlights
From the waltz to voguing, dance crazes have connected people throughout history. But when a dance catches on, who gets the credit — and compensation?
#43
Plastic Surgery
S3E10
#42
Country Music
S3E13
#41
K-Pop
S1E4
#40
Apologies
S3E8
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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