O Mar da Tranquilidade (2021)

Director Choi's briefing about the mission leaves Song Jian displeased. Reaching the research station alone proves no easy feat for the crew. (Source: Netflix)

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. (Source: Netflix)

Jian's body cam captures a startling moment of life and death. Submerged in sweat, Gong Soochan shows worrisome signs of an unusual infection. (Source: Netflix)

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. (Source: Netflix)

Recalling her sister's encrypted message, Jian searches the database for Luna. A young intruder and a double-crosser emerge from the shadows. (Source: Netflix)

E2, Ryu Taesuk and the samples go missing. Seeing a familiar name on the intruder, Jian follows her down the vents for answers. (Source: Netflix)

Jian opens a hard drive that chronicles Song Wonkyung's life and work on the station. Meanwhile, others uncover the remains of the experiment. (Source: Netflix)

Racing against time as the research station falls under destruction, the surviving crew members decide on the fate of the mission — and their own. (Source: Netflix)