The Silent Sea

Director Choi's briefing about the mission leaves Song Jian displeased; reaching the research station alone proves no easy feat for the crew.

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.

Jian's body cam captures a startling moment of life and death; submerged in sweat, Gong Soochan shows worrisome signs of an unusual infection.

Han Yunjae updates the director and gets access to a restricted area; the crew members learn of the sample's powers and the true motive behind their mission.

Recalling her sister's encrypted message, Jian searches the database for Luna; a young intruder and a double-crosser emerge from the shadows.

E2, Ryu Taesuk and the samples go missing; Jian follows the intruder down the vents for answers.