The 'Beast Cop' Ma Seok-do heads to a foreign country to extradite a suspect, but soon after his arrival, he discovers additional murder cases and hears about a vicious killer who has been committing crimes against tourists for several years.
A respectable village head decides to keep his son away from the violent politics of rural life. However, fate intervenes, forcing the young man to not only return home, but also take up the sickle.
Jae-ho, who aims to become the number one in a crime organization, gets to build up trust with Hyun-su, an ambitious newbie in the prison. While they try to take over the organization after the prison release, their ulterior motives starts to emerge.
A former arm-wrestling champion raised in the U.S. returns to South Korea for a tournament that could return him to glory, but he finds his life complicated by the appearance of the biological family he never knew.
After a successful first season, Webtoon "Assassin Jun" is about to begin it’s second season. Out of ideas, Jun uses an anonymous email's plot in his Webtoon, only to see real-life terrorist attacks resembling the story unfold.
