
After Aliens arrive, the story takes place in two time streams: 2017 and 2037. In twenty years, and by 2037, the world has been divided into a “Smart Earth” where artificial intelligence has created a utopian environment in which no diseases or crimes exist, and an “Ordinary Earth” where people still suffer from rampant plague and lawlessness.

as Kim Woo-Jin

as Kim Joon-Hyuk

as Han Jung-Yeon

as Lee Ho-Soo

as Detective Oh

as Kim Beom-Gyoon

as Kim Kyu-Cheol

as Lee Hyun-Seok

as Yoon Hak-Joo

as Secretary Shin

as Hong Jin-Hong

as Hwang Yong-Woo

as Lee Dong-Soo

as Kim Bum-gyun (young)

as Kim Woo-jin (young)

as Park Min-young