A creature action thriller series about the desperate survival of the survivors among the mutant humans who drank a mysterious black smoke from the sinkhole and soon turned into monsters and quickly became a pandemonium.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Episode 1 | 2021-04-30 | 90 min |
| Season 1 | Episode 2 | Episode 2 | 2021-05-01 | 90 min |
| Season 1 | Episode 3 | Episode 3 | 2021-05-07 | 90 min |
| Season 1 | Episode 4 | Episode 4 | 2021-05-08 | 90 min |
| Season 1 | Episode 5 | Episode 5 | 2021-05-14 | 90 min |
| Season 1 | Episode 6 | Episode 6 | 2021-05-15 | 90 min |
| Season 1 | Episode 7 | Episode 7 | 2021-05-21 | 90 min |
| Season 1 | Episode 8 | Episode 8 | 2021-05-22 | 90 min |
| Season 1 | Episode 9 | Episode 9 | 2021-05-28 | 90 min |
| Season 1 | Episode 10 | Episode 10 | 2021-05-29 | 90 min |
| Season 1 | Episode 11 | Episode 11 | 2021-06-04 | 90 min |
| Season 1 | Episode 12 | Episode 12 | 2021-06-05 | 90 min |
| Writing | Jung Yi-do | Screenplay |
| Directing | Kim Bong-joo | Director |