Season 1
Set in the 1970's, Baek Gi Tae is an ambitious man, who thirsts for wealth and power. Jang Gun Yeong is a prosecutor with animalistic instinct and fearsome tenacity. Facing a major incident, Jang Gun Yeong throws his everything to stop Baek Gi Tae. The people around them include Lobbyist Choi Yu Ji, Investigator O Ye Jin, Bae Geum Ji and Chief Secretary Cheon Seok Jeong
Episode 1
A plane headed for Fukuoka is hijacked and Kitae, a business man, faces a crisis.
Episode 2
Geonyoung uncovers the KCIA's suspicious activities while working to bring down a crime boss.
Episode 3
Kitae gets involved in an illegal operation as Geonyoung closes in on the truth.
Episode 4
Kitae meets with Ikeda clan to scale up operations while Geonyoung follows him to Japan.
Episode 5
Geonyoung figures out how to arrest Kitae, who obliviously continues to expand his business.
Episode 6
Kitae searches for a new business partner with Yuji, while Geonyoung sets a trap to catch him.