S1 E1 • Episode 1

Twin brothers Woo Jin and Bum Gyun encounter an alien as children, turning Bum Gyun dangerously paranoid as an adult in 2017. In 2037, Detective Kim and Chief Hong look for a way into a "crime-free" Smart Earth.

Première diffusion : 22 mai 2017

S1 E2 • Episode 2

Woo Jin doesn't know what to believe when a disturbingly familiar student joins his class. The trust between Detective Kim and the Smart Earth employees is destroyed from the get-go.

Première diffusion : 23 mai 2017

S1 E3 • Episode 3

With Bum Gyun still missing, Woo Jin teams up with Jung Yeon to look further into the suicides. Joon Hyuk proposes going to Normal Earth to access Park Jin Gyu's memories.

Première diffusion : 29 mai 2017

S1 E4 • Episode 4

Woo Jin and Jung Yeon have a run-in with who they believe to be the culprit. Joon Hyuk and his team make a game-changing discovery about Bluebird.

Première diffusion : 30 mai 2017

S1 E5 • Episode 5

Woo Jin becomes convinced of Jung Yeon’s otherworldliness, but she's reluctant to believe it. Detective Kim learns the true identity of Bluebird.

Première diffusion : 5 juin 2017

S1 E6 • Episode 6

With new clues to investigate, Woo Jin expedites his search for Bum Gyun. In the future, Jung Yeon informs Detective Kim of someone who may know Woo Jin's whereabouts.

Première diffusion : 6 juin 2017

S1 E7 • Episode 7

Première diffusion : 12 juin 2017

S1 E8 • Episode 8

Woo Jin is cornered into helping Professor Han look for lost research. Detective Kim prepares for a possible meeting with the mysterious chairman of Human B.

Première diffusion : 13 juin 2017

S1 E9 • Episode 9

When Woo Jin finds Bum Gyun, Professor Han starts to make his getaway. Detective Kim and Jung Yeon become two of Smart Earth's most wanted.

Première diffusion : 19 juin 2017

S1 E10 • Episode 10

Professor Park realizes that the power lies in his hands now. Detective Kim receives new information about Woo Jin, but Human B is hot on his trail.

Première diffusion : 20 juin 2017

S1 E11 • Episode 11

Woo Jin learns the truth about his father's research data, and Detective Kim learns the truth about what really happened to Woo Jin.

Première diffusion : 26 juin 2017

S1 E12 • Episode 12

In the final episode, Woo Jin, Detective Kim, Jung Yeon, and their crew look for incriminating evidence against Park Dong Geun to take him down once and for all.

Première diffusion : 27 juin 2017