A high school student with amnesia tries to uncover what has happened to her. All leading her into deeper troubles ultimately revealing a darkness she could not have imagined.

Based on the New York Times bestseller, this sweeping saga chronicles the hopes and dreams of a Korean immigrant family across four generations as they leave their homeland in an indomitable quest to survive and thrive.

When a change of heart moves a well-trained hitman to tender his resignation to his employers, no good comes of it for anyone.

Followed by Ma Seok-do, who heads to a foreign country to extradite a suspect. However, he discovers additional murder cases and learns about a killer who had committed crimes against tourists for many years.

11-year-old Dong-ku, who is retarded, is the school's water boy until, that is, the school installed a water purifier system. Disappointed, Dong-ku soon learns the school's baseball team needs a water boy and so he decides to join the team.

In a world where criminals evade justice, citizens vote via text for the death penalty, executed by "Dog Mask" if over 50% agree.