The story of a huge incident faced by Seo Soo-yeon from the support management team that supports and manages NIS field agents in China, Jang Cheon-woo, a hidden NIS black agent and Do Jin-sook, deputy director of overseas parts.
Other Name: 뫼비우스: 검은태양
Creator: Park Seok-ho
Released: Oct. 29, 2021
Status: Completed
Network: MBC
Country: Korean
Genres: Action & Adventure, Drama, Mystery
Cast: Choi Deok-moon, Hwang Hee, Jang Young-nam, Jun Suk-ho, Jung Moon-sung, Kim Jong-tae, Park Ha-sun