Through a mysterious Motorola phone, two detectives - one from the present, and the other from 15 years in the past - begin communicating and working together to solve cold cases. This is the Chinese adaptation of 2016 tvN drama Signal.
| Episode | Airdate | Name | |
|---|---|---|---|
| 32 | 27th Nov 2019 | Episode 32 | |
| 31 | 27th Nov 2019 | Episode 31 | |
| 30 | 22nd Nov 2019 | Episode 30 | |
| 29 | 22nd Nov 2019 | Episode 29 | |
| 28 | 21st Nov 2019 | Episode 28 | |
| 27 | 21st Nov 2019 | Episode 27 | |
| 26 | 20th Nov 2019 | Episode 26 | |
| 25 | 20th Nov 2019 | Episode 25 | |
| 24 | 15th Nov 2019 | Episode 24 | |
| 23 | 15th Nov 2019 | Episode 23 | |
| 22 | 14th Nov 2019 | Episode 22 | |
| 21 | 14th Nov 2019 | Episode 21 | |
| 20 | 13th Nov 2019 | Episode 20 | |
| 19 | 13th Nov 2019 | Episode 19 | |
| 18 | 8th Nov 2019 | Episode 18 | |
| 17 | 8th Nov 2019 | Episode 17 | |
| 16 | 7th Nov 2019 | Episode 16 | |
| 15 | 7th Nov 2019 | Episode 15 | |
| 14 | 6th Nov 2019 | Episode 14 | |
| 13 | 6th Nov 2019 | Episode 13 | |
| 12 | 1st Nov 2019 | Episode 12 | |
| 11 | 1st Nov 2019 | Episode 11 | |
| 10 | 31st Oct 2019 | Episode 10 | |
| 9 | 31st Oct 2019 | Episode 9 | |
| 8 | 30th Oct 2019 | Episode 8 | |
| 7 | 30th Oct 2019 | Episode 7 | |
| 6 | 25th Oct 2019 | Episode 6 | |
| 5 | 25th Oct 2019 | Episode 5 | |
| 4 | 24th Oct 2019 | Episode 4 | |
| 3 | 24th Oct 2019 | Episode 3 | |
| 2 | 23rd Oct 2019 | Episode 2 | |
| 1 | 23rd Oct 2019 | Episode 1 |