Episode Ratings Grid

Every episode at a glance, color-coded by rating. Rows are episode numbers within each season, columns are seasons.

M
S1
E1
7.4
E2
7.4
E3
7.4
E4
7.5
E5
7.6
E6
7.3
E7
7.5
E8
7.3
E9
7.7
E10
7.6
E11
8.0
E12
7.5
Avg
7.5
Great
Good
SeriesScores.com

Episode Power Rankings

The best and worst episodes at a glance. Use this to find must-watch episodes or ones you might want to skip.

🏆 Top Episodes

#1 8.0

S1E11 Backup Power

Sae Bom and Yi Hyun fall into a crisis due to the resident representative, Oh Ju Hyung, and other residents conspiring with Andrew. Tae Seok learns that Sae Bom is in danger and tries to get her out. And Yi Hyun, who still hasn't told Sae Bom about being infected, tries to protect her any way he can. However, they end up face to face with a mob of the infected.

#2
S1E9 7.7

Dwindling Water

The residents in Building 101 suspect Sae Bom and Yi Hyun are infected and quarantine them in their unit. With them quarantined, the residents discuss what to do about them. Making matters worse is the dwindling food and water supply. If they can't get it from outside, the only choice is to take it from someone else. Meanwhile, Sae Bom and Yi Hyun figure out how to find out who is infected.

#3
S1E5 7.6

The Outsiders

All the apartments within the complex get infected, except Building 101. The phone lines and Internet get disconnected, and they are all on their own. Sae Bom and Yi Hyun struggle with the constant conflict between the renters and owners inside the building, including the people outside. Meanwhile, their food depletes, and they are left with only one option, to go outside.

  1. 4. S1E10 "Kim Se Hoon Disappears" 7.6
  2. 5. S1E4 "The Spread" 7.5
  3. 6. S1E7 "The Intruder" 7.5
  4. 7. S1E12 "Happiness Is With You" 7.5
  5. 8. S1E1 "Public Rental Apartment" 7.4
  6. 9. S1E2 "Thirsty Patients" 7.4
  7. 10. S1E3 "Locked In" 7.4

📉 Bottom Episodes

#12
S1E8 7.3

Countdown

The apartment complex is now without electricity. Sae Bom and Yi Hyun find traces of an infected person inside Building 101. Who could be infected? The residents suspect others of being infected and wait for the lockdown to end. Meanwhile, Tae Seok makes a decision knowing that the antibodies may be inside Sae Bom.

  1. 11. S1E6 "One Man's Life" 7.3
  2. 10. S1E3 "Locked In" 7.4
  3. 9. S1E2 "Thirsty Patients" 7.4
  4. 8. S1E1 "Public Rental Apartment" 7.4
SeriesScores.com

The Quality Arc

Each point is an episode, plotted chronologically. The colored bands mark season boundaries. Look for upward or downward trends to see if quality improved or declined over time.

S1 6.56.97.37.78.18.5 Rating 2 4 6 8 10 12 Episode 10 9 8 7 6 5
SeriesScores.com

Episode Engagement

Vote count shows how many people cared enough to rate. High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

Rating threshold:
3 Standouts
3 Infamous
4 Hidden Gems
2 Forgettable
Standouts Infamous Hidden Gems Forgettable Global: 7.5 7.27.47.57.77.88.0 Rating 287 324 366 413 467 Votes (log scale)
Top Standout: S1E5 The Outsiders
Most Infamous: S1E1 Public Rental Apartment
Best Hidden Gem: S1E11 Backup Power

Episodes plotted by rating vs. vote count. The vertical line marks the rating threshold (7.5). More votes = more engagement. Toggle above to compare against global or show-specific median.

SeriesScores.com