S1.E1 ∙ Episode #1.1 Tue, Feb 16, 2021 Aboard a falling plane as the clock ticks toward doom, Han Tae Sul puts his famous mind to work for a solution. Kang Seo Hae arrives in the year 2020. 7.3 /10
S1.E2 ∙ Episode #1.2 Wed, Feb 17, 2021 The contents of a mysterious suitcase give Tae Sul more questions than answers. In exchange for lottery numbers, Sun agrees to help Seo Hae. 7.2 /10
S1.E3 ∙ Episode #1.3 Tue, Feb 23, 2021 Tae Sul's presentation at a conference gets a violent interruption. He and Seo Hae make a narrow escape, but more trouble soon follows. 7.1 /10
S1.E4 ∙ Episode #1.4 Wed, Feb 24, 2021 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. 7.2 /10
S1.E5 ∙ Episode #1.5 Tue, Mar 02, 2021 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. 7.1 /10
S1.E6 ∙ Episode #1.6 Wed, Mar 03, 2021 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. 7.5 /10
S1.E7 ∙ Episode #1.7 Tue, Mar 09, 2021 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. 7.6 /10
S1.E8 ∙ Episode #1.8 Wed, Mar 10, 2021 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. 7.4 /10
S1.E9 ∙ Episode #1.9 Tue, Mar 16, 2021 At the amusement park with Tae Sul for her birthday, Seo Hae encounters someone unexpected. A familiar threat strikes again. 7.3 /10
S1.E10 ∙ Episode #1.10 Wed, Mar 17, 2021 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. 7.3 /10
S1.E11 ∙ Episode #1.11 Tue, Mar 23, 2021 Tae Sul and Sigma come face-to-face. In order to rescue Seo Hae, Tae Sul must endure an emotional trip through his past. 6.9 /10
S1.E12 ∙ Episode #1.12 Wed, Mar 24, 2021 When Seo Hae wakes up, a person she missed is waiting to meet her. A long-forgotten childhood memory returns to Tae Sul. 7 /10
S1.E13 ∙ Episode #1.13 Tue, Mar 30, 2021 Tae Sul is reunited with a trusty friend, who comes to him with a warning. A suitcase containing disturbing contents arrives at Asia Mart. 7.1 /10
S1.E14 ∙ Episode #1.14 Wed, Mar 31, 2021 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. 7.1 /10
S1.E15 ∙ Episode #1.15 Tue, Apr 06, 2021 As Tae Sul tries to locate him, Sigma reveals more details about himself. Sun frees Seo Hae from the bunker. 7.3 /10
S1.E16 ∙ Episode #1.16 Wed, Apr 07, 2021 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. 7.2 /10
