Season 1

• 

  7.3/10350 votes

  Episode 1

  Season 1 Episode 1 - Aired 2/17/2021

  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.

  Director: Unknown

  Writer: Unknown

• 

  7.3/10312 votes

  Episode 2

  Season 1 Episode 2 - Aired 2/18/2021

  The contents of a mysterious suitcase give Tae-sul more questions than answers. In exchange for lottery numbers, Sun agrees to help Seo-hae.

  Director: Unknown

  Writer: Unknown

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  7.1/10294 votes

  Episode 3

  Season 1 Episode 3 - Aired 2/24/2021

  Tae-sul's presentation at a conference gets a violent interruption. He and Seo-hae make a narrow escape, but more trouble soon follows.

  Director: Unknown

  Writer: Unknown

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  7.2/10283 votes

  Episode 4

  Season 1 Episode 4 - Aired 2/25/2021

  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.

  Director: Unknown

  Writer: Unknown

• 

  7.2/10241 votes

  Episode 5

  Season 1 Episode 5 - Aired 3/3/2021

  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.

  Director: Unknown

  Writer: Unknown

• 

  7.6/10241 votes

  Episode 6

  Season 1 Episode 6 - Aired 3/4/2021

  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.

  Director: Unknown

  Writer: Unknown

• 

  7.6/10207 votes

  Episode 7

  Season 1 Episode 7 - Aired 3/10/2021

  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.

  Director: Unknown

  Writer: Unknown

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  7.4/10203 votes

  Episode 8

  Season 1 Episode 8 - Aired 3/11/2021

  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.

  Director: Unknown

  Writer: Unknown

• 

  7.3/10165 votes

  Episode 9

  Season 1 Episode 9 - Aired 3/17/2021

  At the amusement park with Tae-sul for her birthday, Seo-hae encounters someone unexpected. A familiar threat strikes again.

  Director: Unknown

  Writer: Unknown

• 

  7.3/10161 votes

  Episode 10

  Season 1 Episode 10 - Aired 3/18/2021

  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.

  Director: Unknown

  Writer: Unknown

• 

  7.0/10149 votes

  Episode 11

  Season 1 Episode 11 - Aired 3/24/2021

  Tae-sul and Sigma come face-to-face. In order to rescue Seo-hae, Tae-sul must endure an emotional trip through his past.

  Director: Unknown

  Writer: Unknown

• 

  7.0/10140 votes

  Episode 12

  Season 1 Episode 12 - Aired 3/25/2021

  When Seo-hae wakes up, a person she missed is waiting to meet her. A long-forgotten childhood memory returns to Tae-sul.

  Director: Unknown

  Writer: Unknown

• 

  7.1/10140 votes

  Episode 13

  Season 1 Episode 13 - Aired 3/31/2021

  Tae-sul is reunited with a trusty friend, who comes to him with a warning. A suitcase containing disturbing contents arrives at Asia Mart.

  Director: Unknown

  Writer: Unknown

• 

  7.1/10135 votes

  Episode 14

  Season 1 Episode 14 - Aired 4/1/2021

  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.

  Director: Unknown

  Writer: Unknown

• 

  7.3/10135 votes

  Episode 15

  Season 1 Episode 15 - Aired 4/7/2021

  As Tae-sul tries to locate him, Sigma reveals more details about himself. Sun frees Seo-hae from the bunker.

  Director: Unknown

  Writer: Unknown

• 

  7.3/10159 votes

  Episode 16

  Season 1 Episode 16 - Aired 4/8/2021

  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.

  Director: Unknown

  Writer: Unknown