Corrupt detective Han Jong-sik (Kim Seung-woo) takes care of a gang and gets kickbacks to save his daughter. One day he gets news from the organ transplant coordinator that they have found a heart for his daughter (kim Sae-ron). However, he finds out the donor is magician Na Sang-man (Son Byeong-ho) who he put false charges over and was in jail. Sang-man lost his young daughter and wife and became a vegetative state himself. Jong-sik guesses he wouldn’t allow the transplant so he plans a way to get rid of him. Just as Sang-man is about to go over in the hands of a gang and get surgery, he realizes the plan and disappears with Jong-sik’s daughter.
Set in a tumultuous period where the political scene is murky and various people fought to gain power and the throne, the young king will do anything to strengthen his shaky position in court. His childhood friend Baek Rok leads a secret military force loyal to the king, called the "Black Cloud Swords." Baek Rok lives for his king, his brother Baek Kyul and his lover Jung Yeon, but when his ambitious brother betrays him and leads him into a trap, he finds himself on the run. He becomes a slave and gladiator, eventually returning to Joseon to seek revenge.
Only 1% of the marines becomes part of the special forces. Staff Sergeant Lee Yu-mi becomes the first ever non-commissioned officer to become part of the 3 teams vying to become part of the special forces. She joins the the bottom ranked team as they attempt to become part of the special 1% marines ...
“Jang Do-young is a tough, short-tempered, somewhat jaded homicide detective. Most members of his department regard him as a troublemaker and he has lost faith in the system. Jang has been struggling to nail Yoo Kang-jin, a notorious crime boss, with little success so far. Jang crosses paths with Oh Jin-woo, an elite prosecutor who graduated at the top of his class and who lives his life by the letter of the law. To Oh there would be no civilization without rules. Oh is also on a mission to bring Yoo to justice. He had managed to get Yoo put in jail some time ago, but the gangster got out early and is now preparing to run for political office. Oh thinks he ought to re-investigate Yoo; he’s convinced there is enough evidence to put him away for good. So he and Jang form an uneasy alliance. When Yoo learns of this new threat, he decides to show them what they’re up against. He gets his henchmen to attack Jang’s family and he arranges to have Jang and Oh arrested for police harassment. The fight has now become personal. For Jang and Oh, it is no longer a matter of simple justice; whether they’re prepared to admit it or not, the war with Yoo has become a matter of survival and revenge.”