1942, Nanjing. Following a series of assassination attempts on officials of the Japanese-controlled puppet government, the Japanese spy chief gathers a group of suspects in a mansion for questioning, and eventually, torturing. A tense game of "cat and mouse" ensues as the Chinese code-breaker attempts to send out a crucial message while protecting his/her own identity.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Episode 1 | 2020-12-24 | 60 min |
| Season 1 | Episode 2 | Episode 2 | 2020-12-24 | 60 min |
| Season 1 | Episode 3 | Episode 3 | 2020-12-25 | 60 min |
| Season 1 | Episode 4 | Episode 4 | 2020-12-25 | 60 min |
| Season 1 | Episode 5 | Episode 5 | 2020-12-26 | 60 min |
| Season 1 | Episode 6 | Episode 6 | 2020-12-27 | 60 min |
| Season 1 | Episode 7 | Episode 7 | 2020-12-27 | 60 min |
| Season 1 | Episode 8 | Episode 8 | 2020-12-28 | 60 min |
| Season 1 | Episode 9 | Episode 9 | 2020-12-28 | 60 min |
| Season 1 | Episode 10 | Episode 10 | 2020-12-29 | 60 min |
| Season 1 | Episode 11 | Episode 11 | 2020-12-29 | 60 min |
| Season 1 | Episode 12 | Episode 12 | 2020-12-30 | 60 min |
| Season 1 | Episode 13 | Episode 13 | 2020-12-30 | 60 min |
| Season 1 | Episode 14 | Episode 14 | 2020-12-31 | 60 min |
| Season 1 | Episode 15 | Episode 15 | 2020-12-31 | 60 min |
| Season 1 | Episode 16 | Episode 16 | 2021-01-01 | 60 min |
| Season 1 | Episode 17 | Episode 17 | 2021-01-01 | 60 min |
| Season 1 | Episode 18 | Episode 18 | 2021-01-02 | 60 min |
| Season 1 | Episode 19 | Episode 19 | 2021-01-03 | 60 min |
| Season 1 | Episode 20 | Episode 20 | 2021-01-03 | 60 min |
| Season 1 | Episode 21 | Episode 21 | 2021-01-04 | 60 min |
| Season 1 | Episode 22 | Episode 22 | 2021-01-04 | 60 min |
| Season 1 | Episode 23 | Episode 23 | 2021-01-05 | 60 min |
| Season 1 | Episode 24 | Episode 24 | 2021-01-05 | 60 min |
| Season 1 | Episode 25 | Episode 25 | 2021-01-06 | 60 min |
| Season 1 | Episode 26 | Episode 26 | 2021-01-06 | 60 min |
| Season 1 | Episode 27 | Episode 27 | 2021-01-07 | 60 min |
| Season 1 | Episode 28 | Episode 28 | 2021-01-07 | 60 min |
| Season 1 | Episode 29 | Episode 29 | 2021-01-08 | 60 min |
| Season 1 | Episode 30 | Episode 30 | 2021-01-08 | 60 min |
| Season 1 | Episode 31 | Episode 31 | 2021-01-09 | 60 min |
| Season 1 | Episode 32 | Episode 32 | 2021-01-10 | 60 min |
| Season 1 | Episode 33 | Episode 33 | 2021-01-10 | 60 min |
| Season 1 | Episode 34 | Episode 34 | 2021-01-11 | 60 min |
| Season 1 | Episode 35 | Episode 35 | 2021-01-11 | 60 min |
| Season 1 | Episode 36 | Episode 36 | 2021-01-12 | 60 min |
| Season 1 | Episode 37 | Episode 37 | 2021-01-12 | 60 min |
| Season 1 | Episode 38 | Episode 38 | 2021-01-13 | 60 min |
| Directing | Li Yunliang | Director |
| Directing | Wu Jinghai | Director |
| Directing | Sun Buer | Director |
| Directing | Gu Qiming | Director |