Season 1

After a thrilling boxing match, Kim Gun-woo befriends Hong Woo-jin. Kim Myeong-gil's business ambitions come into focus, with dangerous tactics at play.

Gun-woo meets with Choi Tae-ho to remedy his mother's debt. Myeong-gil endures a humiliating meeting with Hong Min-beom and grows revengeful.

Gun-woo and Woo-jin figure out how to take down the scam ring. Myeong-gil gains the upper hand on Min-beom.

After the group faces a close call, President Choi plans his own operation. But as their plans fall into place, the enemies stand in their way.

After narrowly escaping a threat, the group trains for what's coming — and President Choi and his men look to extract valuable information.

The group celebrates as they get ready for their next move. More exposed than ever before, Myeong-gil goes after President Choi and his guards.

After an unthinkable setback, Gun-woo and Woo-jin resolve to come back with a vengeance — later partnering with an unlikely figure.

Galvanized by their duty to their loved ones, Gun-woo and Woo-jin tread forward to take down Myeong-gil — once and for all.