Betrayed and on the run, a former North Korean agent tries to seek revenge on the man who killed his wife, find his missing daughter, and uncover the secrets hidden inside the eyeglasses of a dead man.
After completing his required decade of military service and being honored as a hero, a North Korean sergeant makes a sudden shocking attempt to defect to the South, risking life and limb for the chance to finally determine his own destiny.
Poongsan has the unenviable - and death-defying - job of delivering messages across the North and South Korean border to separated families. When South Korean government agents ask him to smuggle in In-ok, the lover of a high-ranking North Korean defector, into the South, the damsel and rescuer fall in love instead.
The North Korean defector, who has just settled in the South, is confused by his brother who was separated from the defection process. Ji-hyeok, a Chinese restaurant deliveryman who is having a hard time finding a job due to his criminal record, wants to leave Korea as soon as possible. To raise money for his defector brother, Ji-hyeok, who is involved in a dangerous drug-transport errand, suggests intercepting billions of won of methamphetamine.
The story of Lee Tae-shik, a former anti-terrorist unit who worked as a secret agent for the National Intelligence Service, struggling to find his wife Ri Seon-hee, a North Korean defector who went missing on their first anniversary of marriage.
In a small North Korean village near the border of China, there are believers who get together in an underground church, away from the eyes of the persecuting government. When the missionary from China, their only support route, is cut off, things begin to get very tense. Chulho, who had been arrested along with his wife, returns. After losing his wife in the interrogations, Chulho had been released and unseen for 2 years before coming back to his home, claiming that he had been commanded by God to lead the believers across the border and into South Korea. The brothers wonder if Chulho is trustworthy, and whether it is the right thing to do to leave their homeland.
A poor North Korean fisherman finds himself an accidental defector, and is groomed to be a spy by an ambitious South Korean military officer.
Jung-ho, the former South Korean undercover hid in North for 20 years. When he finally flees back to South, his dead wife starts to appear and haunts his memory. Tracing back his faint memory he looks for his old colleagues who are supposed to return to South but they’re all missing or dead. 20 years ago Jung-ho got a mission to help North Korean officer and his family to exile to South. However the operation failed and this made him have an irrevocable decision. The secret past that Jung-ho never wants to reveal is about to come out 20 years later in the South.
Ryun-hee Kim, a North Korean housewife, was forced to come to South Korea and became its citizen against her will. As her seven years of struggle to go back to her family in North Korea continues, the political absurdity hinders her journey back to her loved ones. The life of her family in the North goes on in emptiness, and she fears that she might become someone, like a shadow, who exists only in the fading memory of her family.
In the winter of 2013, Yong-jun and Jae-sung, a member of the Korean People’s Army, are caught having sex by a superior. After that, Yong-jun decides to defect from North Korea to the South leaving Jae-sung behind. Yong-jun risks his life to step on the land of freedom and meets Tae-kyu. Two years after, Jae-sung comes over to the South, and Yong-jun must decide between Jae-sung and Tae-kyu. This causes misunderstandings and puts them in pain.