S1 • E1
After the success of the Hatch presentation, Jae-hyun gets touted as the presidential candidate. Meanwhile, his wife Tae-ra regains her lost memory.
S1 • E2
Tae-ra cannot believe she is No.50, the killer who shot Hae-soo's father fifteen years ago. Chaos ensues at Hatch as super chimpanzee Red gets killed. The three friends of Hatch start their investigation.
S1 • E3
Jae-hyeon declares his candidacy for president, and Kim Seon-deok finally appears. Tae-ra gets thrown into commotion from her past and present. Worried about Tae-ra not acting like herself, Jae-hyeon hires a bodyguard.
S1 • E4
Hae-soo cannot accept that Tae-ra is No.50, the killer who took her father's life. Tae-ra confronts Kim Seon-deok and chases the person who manipulated her life.
S1 • E5
Yoo-ra is found dead, hanging on a tree struck by lightning. The townhouse turns upside down. Do-jin, who had an affair with Yoo-ra, becomes a prime suspect. Soon after, Hae-soo suggests Tae-ra appear on her talk show.
S1 • E6
Hae-soo reveals Tae-ra's identity on the talk show. In the meantime, Sung-chan finds an unexpected item and becomes Tae-ra's ally. Do-jin realizes Hae-soo's true feelings and decides to believe her. He starts uncovering Tae-ra's past.
S1 • E7
Tae-ra learns her bodyguard Pil-seung is her brother. She warns Kim Seon-deok, but Pil-seung's cold attitude only disheartens her. Kim Seon-deok starts trailing Jae-hyun, making him suspect the townhouse residents.
S1 • E8
Pil-seung confesses to killing Chairman Song and assassinating President Ko Tae-sun fifteen years ago. As usual, Tae-ra tries to take the blame. Meanwhile, Do-jin's heart sinks when he learns about the shocking past of Jang Geun-mo, his father.
S1 • E9
Kim Seon-deok dies in Tae-Rea's hands at the banquet. Meanwhile, Hae-soo decides to reveal the truth.
S1 • E10
Tae-ra saves Hae-soo. The two finally face the truth about what happened fifteen years ago.
S1 • E11
Jae-hyun cannot read Hae-soo's intentions. Tae-ra and Kyo-jin try to stop Hatch's second presentation.
S1 • E12
Tae-ra and Hae-soo cooperate in finding Jae-hyun's weakness before the second Hatch presentation.
S1 • E13
Jae-hyun fabricates Tae-ra's memories by inserting a chip. Hae-soo and Gyo-jin try to bring her back.
S1 • E14
Tae-ra gets injured while saving Jae-hyun. The election starts, and the voting results are announced.
S1 • E15
Jae-hyun gets away with a fire incident and spurs the inauguration of the Transition Team. Do-jin is released from the prosecution with Kummo's help.
S1 • E16
Jae-hyun desperately searches for Tae-ra, who vanished into thin air. Tae-ra is now with Gyo-jin. Everyone treats Jae-hyun like a lunatic.
Hong Tae-ra
Pyo Jae-hyeon
Goo Seong-chan
Jang Do-Jin
Go Hae-soo
Jang Geun-mo
Min Young-hwee
Jang Gyo-jin
Cha Pil-seung
Han Gyul-rok