All Episodes - S01
EPS01
Director Choi's briefing about the mission leaves Song Jian displeased. Reaching the research station alone proves no east feat for the crew
EPS02
The crew's initial findings are at odds with their knowledge of the research station. Split into threes, the members set out to look for the sample.
EPS03
Jian's body camera captures a startling moment of life and death. Submerged in sweat, Gong Soochan shows worrisome signs of an unusual infection.
EPS04
Han Yunjae 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.
EPS05
Recalling her sister's encrypted message, Jian searches the database for Luna. A young intruder and double-crosser emerge from the shadows.
EPS06
E2, Ryu Taesuk and the samples go missing. Seeing a familiar name on the intruder, Jian follows her down the vents for answers.
EPS07
Jian opens a hard drive that chronicles Song Wonkyong's life and work on the station. Meanwhile, others uncover the remains of the experiment.
EPS08
Racing against time as the research station falls under destruction, the surviving crew members decide the fate of the mission - and their own.