13 years after the King Injo Revolt, the Chosun Dynasty is attacked by the Chung Dynasty of China. A young man named Na-mi leaves his demolished village to find his young sister, Ja-in, and her finance Su-koon, who were to wed on the very day of the attack. While on his mission to rescue her, he is being traced by Jushinta, a fierce Chung Warrior, and his band of malicious men who are out to stop him. Na-mi has but a day to rescue his sister before she is taken away to be a slave. When Na-mi finally finds his sister, Jushinta comes between them and a fierce battle between two of the finest warriors unfolds.

A group of spies, the 5446 Corps were trained by North Korean special forces since their youth, with a goal of unifying Korea. They are ambitiously dispatched to South Korea, where each disguises himself as a fool, an aspiring singer, and a high school student. Passing boring time without receiving any orders from the North, they gradually get used to life as ordinary neighbors in a small town. Due to the events of the Second Battle of Yeonpyeong, South Korea demands the names, location, and rank of 30 North Korean spies active in South Korea, promising financial aid to the North on the condition that Pyongyang turns in their spies. To prevent the elites from falling into enemy hands, the North Korean government orders dozens of active duty spies to take their own lives. Meanwhile, their North Korean army instructor Kim Tae-won crosses the border to eliminate those who refuse to comply.

Based on the hit manhwa series of the same name, Bridal Mask brings viewers to 1930s Korea during the height of Japanese imperialism. Lee Kang To (Joo Won of Baker King Kim Tak Goo) is an ambitious and callous Korean officer employed by the Japanese colonists. Despite his mother's disapproval of his work and his own brother's antagonistic history with the Japanese, Kang To continues to play by the colonist's rules in hopes of becoming successful and bringing his family out of poverty. However, a mysterious figure wearing a traditional Bridal Mask always seems to get in Kang To's way. The Bridal Mask appears as a Zorro-like figure who protects the people from the Japanese colonists' oppression and abuse of power. An unexpected turn events brings Kang To to cross paths with the mysterious Bridal Mask, changing his future and the nation's history forever. Written by MDL