An unfathomable incident introduces a genius engineer to dangerous secrets of the world — and to a woman from the future who's come looking for him.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Episode 1 | 2020-09-02 | 45 min |
| Season 1 | Episode 2 | Episode 2 | 2020-09-02 | 45 min |
| Season 1 | Episode 3 | Episode 3 | 2020-09-02 | 45 min |
| Season 1 | Episode 4 | Episode 4 | 2020-09-02 | 45 min |
| Season 1 | Episode 5 | Episode 5 | 2020-09-03 | 45 min |
| Season 1 | Episode 6 | Episode 6 | 2020-09-03 | 45 min |
| Season 1 | Episode 7 | Episode 7 | 2020-09-04 | 45 min |
| Season 1 | Episode 8 | Episode 8 | 2020-09-04 | 45 min |
| Season 1 | Episode 9 | Episode 9 | 2020-09-09 | 45 min |
| Season 1 | Episode 10 | Episode 10 | 2020-09-09 | 45 min |
| Season 1 | Episode 11 | Episode 11 | 2020-09-10 | 45 min |
| Season 1 | Episode 12 | Episode 12 | 2020-09-10 | 45 min |
| Season 1 | Episode 13 | Episode 13 | 2021-03-31 | 80 min |
| Season 1 | Episode 14 | Episode 14 | 2021-04-01 | 69 min |
| Season 1 | Episode 15 | Episode 15 | 2021-04-07 | 71 min |
| Season 1 | Episode 16 | Episode 16 | 2021-04-08 | 75 min |
| Directing | Jin Hyuk | Director |
| Writing | Lee Je-in | Writer |
| Writing | Jeon Chan-ho | Writer |
| Directing | Kim Seung-ho | Co-Director |
