#1
S1E4
The Truth Comes Out
Han Yun-jae updates the director and gets access to a restricted area. The crew learns of the sample's powers and the true motive behind their mission.
Episode Ratings Grid
M
Loading chart...
Good
Mid
If You Liked This
See AllEpisode Power Rankings
The peaks and the valleys. Find the essential episodes — and the ones to skip.
#2
S1E5
Secret Storage
Recalling her sister's encrypted message, Ji-an searches the database for Luna. A young intruder and a double-crosser emerge from the shadows.
#3
S1E7
Luna
Ji-an opens a hard drive that chronicles Song Won-kyung's life and work on the station. Meanwhile, others uncover the remains of the experiment.
#4
Cause of Death
S1E3
#5
Key to Salvation
S1E6
#6
Three Storages
S1E2
#7
The Silent Sea
S1E8
#8
Balhae Lunar Research Station
S1E1
Lowlights
Director Choi's briefing about the mission leaves Song Ji-an displeased. Reaching the research station alone proves no easy feat for the crew.
#7
The Silent Sea
S1E8
#6
Three Storages
S1E2
#5
Key to Salvation
S1E6
#4
Cause of Death
S1E3
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.
Loading chart...
Episode Engagement
High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.
Loading chart...