[4][5] It aired on MBC TV from September 17 to October 23, 2021, every Friday and Saturday at 22:00 (KST).

[6][7] A two-part spin-off of the series titled Moebius: The Veil, which was focused on the backstories of Park Ha-sun, Jung Moon-sung and Jang Young-nam's characters, aired on October 29–30, 2021.

[8] It is about a top field agent in the National Intelligence Service (NIS).

After going missing a year ago, he returns to the organization to find an internal traitor who dropped him into the abyss.

[9] The series received a 15 billion won investment from MBC and Wavve for its production.