Season 1
16 episodes · first aired 2021-02-17
| Still | # | Title | Overview | Air date | Rating |
|---|---|---|---|---|---|
 | 01 | Episode 1 2021-02-17 | Aboard a falling plane as the clock ticks toward doom, Han Tae-sul puts his famous mind to work for a solution. Gang Seo-hae arrives in the year 2020. | 2021-02-17 | 6.9 |
 | 02 | Episode 2 2021-02-18 | The contents of a mysterious suitcase give Tae-sul more questions than answers. In exchange for lottery numbers, Sun agrees to help Seo-hae. | 2021-02-18 | 7.0 |
 | 03 | Episode 3 2021-02-24 | Tae-sul's presentation at a conference gets a violent interruption. He and Seo-hae make a narrow escape, but more trouble soon follows. | 2021-02-24 | 6.7 |
 | 04 | Episode 4 2021-02-25 | On the run from the enforcement agency, Tae-sul and Seo-hae give in to the time traveler's request that they make a stop at his mother's house. | 2021-02-25 | 6.4 |
 | 05 | Episode 5 2021-03-03 | Caught by Kim Seo-jin trespassing in her clinic, Tae-sul tries to explain what's going on. Seo-hae reveals disturbing details about the future. | 2021-03-03 | 6.8 |
 | 06 | Episode 6 2021-03-04 | Seo-hae infiltrates Eddy Kim's party with a mission. After a series of distressing events, Tae-sul realizes he cannot trust everyone around him. | 2021-03-04 | 7.2 |
 | 07 | Episode 7 2021-03-10 | Seo-hae urges Sun to flee the country, and asks Mr. Park to do her a favor in exchange for an item he's eager to get his hands on. | 2021-03-10 | 6.6 |
 | 08 | Episode 8 2021-03-11 | Despite Seo-hae's insistence that he lie low, Tae-sul focuses on tracking down an enigmatic figure who seems to be tied to everything. | 2021-03-11 | 6.2 |
 | 09 | Episode 9 2021-03-17 | At the amusement park with Tae-sul for her birthday, Seo-hae encounters someone unexpected. A familiar threat strikes again. | 2021-03-17 | 6.4 |
 | 10 | Episode 10 2021-03-18 | Tae-sul enters enemy quarters to retrieve Seo-hae. Learning she's been put in a dire condition, he turns to a grudging Mr. Park for assistance. | 2021-03-18 | 6.0 |
 | 11 | Episode 11 2021-03-24 | Tae-sul and Sigma come face-to-face. In order to rescue Seo-hae, Tae-sul must endure an emotional trip through his past. | 2021-03-24 | 5.8 |
 | 12 | Episode 12 2021-03-25 | When Seo-hae wakes up, a person she missed is waiting to meet her. A long-forgotten childhood memory returns to Tae-sul. | 2021-03-25 | 5.8 |
 | 13 | Episode 13 2021-03-31 | Tae-sul is reunited with a trusty friend, who comes to him with a warning. A suitcase containing disturbing contents arrives at Asia Mart. | 2021-03-31 | 6.8 |
 | 14 | Episode 14 2021-04-01 | With the war looming on the horizon, everyone must make their choices. When Seo-hae heads to the only place she knows, Tae-sul finds her. | 2021-04-01 | 7.0 |
 | 15 | Episode 15 2021-04-07 | As Tae-sul tries to locate him, Sigma reveals more details about himself. Sun frees Seo-hae from the bunker. | 2021-04-07 | 7.3 |
 | 16 | Episode 16 2021-04-08 | Tae-sul asks Seo-hae to trust him no matter what happens — and demonstrates that nothing is fixed when it comes to matters of the future. | 2021-04-08 | 6.4 |
Ratings shown are community scores. Once OMDB is wired, these become per-episode IMDB values.