As the deceased soul Ja-hong and his three afterlife guardians prepare for their remaining trials for reincarnation, the guardians soon come face to face with the truth of their tragic time on Earth 1,000 years earlier.
Having died unexpectedly, firefighter Ja-hong is taken to the afterlife by 3 afterlife guardians. Only when he passes 7 trials over 49 days and proves he was innocent in human life, he’s able to reincarnate, and his 3 afterlife guardians are by his side to defend him in trial.
Sometime in the near future, the Korean peninsula attempts to reunify. The South Korean government, which needs enormous funds for the unification to succeed, develops a landmark new technology called the TWR. The TWR is a high speed nuclear reactor and other countries want the technology. To prevent terror in the aftermath of the TWR breakthrough, the government establishes a new organization named NTS (National Anti-Terror Service). Jung-Woo (Jung Woo-Sung) is transferred to the NTS group from the NIS. He's excited about the transfer and hopes to live the life of a real agent, but then discovers his main responsibility is to watch North Korean defectors.
Kim In-Seo is an up-and-coming patent lawyer. He graduated from Yale University and was recently featured in Fortune Magazine. Kim In-Seo accepts an invitation to speak at a University and then takes a long bus ride to give the special lecture on patent law. A lady he met the day before, at an arranged matchmaking date, finds out that he will be riding the bus and decides to take the same bus. When they met at their matchmaking, Kim In-Seo’s mother explained to the lady, that something quite profound happened to her son a few years ago, but she is not sure what happened. While taking the evening bus together, Kim In-Seo tells the story of that profound experience which involved a lady named Hwa Yeon, the palm grove trees and the unfulfilled promises.
A group of deadly assassins kidnap a hostage in the hope of getting a high ransom but when they manage to lose themselves in a forest and end up spending the night in a haunted house they manage to disrupt the plans of the ghosts to ascend to heaven. The assassins hatch a plan to solve the problem but in doing so reveal themselves to be incompetent, so the ghosts decide to give them some training themselves…
Min-jae leaves behind his beloved Eun-ji in order to make money. Five years later, they meet again but now he's a playboy and she is a mistress of a military officer. Their love rekindles.
Writer Lee Yun-ho was the son of a traditional music drama family and met Hanako who had visited Cheongju to learn gayageum. Hanako passed away, leaving her 12 year-old daughter Yumae. Lee Yun-ho lived with her and his old father. Sora, a friend of Hanako, had loved Yun-ho for a long time and took care of his family. However, Yun-ho still had Hanako in his heart and consoled his lonesome heart by loving his daughter Yumae.
A vigilante who calls himself “Dr. Q” is gruesomely disposing of vicious criminals who have managed to evade prosecution, due to some technicality. Each killing was captured on video and Dr. Q uploads them on to the internet shortly after each body is discovered. In between busting the usual roster of thugs and lowlifes, reckless young cop Bong and his more collected, middle-aged partner, Na, work on the case but clash with their S.T.F. counterparts, Lt. Pyo and computer whiz Kang. Pyo discovers a bug in the S.T.F. headquarters but asks Kang to keep this a secret for the time being. Further suspicious acts on Pyo’s part leave Kang uncertain of his loyalty. Bong and Na, meanwhile, are assigned to work directly with S.T.F, leading to several clashes between Bong and Pyo, whose styles could not be more different. All leads point to The Ilsim Ring, a clandestine assassination squad apparently made of up of high ranking law enforcement officials.
Guerilla fighters take hostage twenty Korean workers in the Philippines. The Korean army dispatches five special unit agents to carry out a rescue mission. But when a mischievous computer hacker tampers with military computer records, five soldiers are sent to wrong jungles of the Philippines.
Han is a suicidal saxophonist, Mun is a violent simpleton with an I.Q. of 80, and Maria is a single mother with dreams of becoming a nun. Han has tried numerous times to kill himself, but nothing ever works. After witnessing his wife's infidelity, it's the last straw.
A hotel bellboy having recently been dumped falls in love with a leg model who's a regular guest at the hotel' she and her lover meet regularly in room 901. One day, her lover gets killed in a hit-and-run accident. Also around this hotel is a telephone operator, whom wishes to waste her time. Her fixation is with a taxi ride. When she gets into a cab, she doesn't tell the driver where to go, and the driver doesn't ask. They just speed along the city at night.
Yeong-hun gave up medical school to follow his dream of becoming a movie director but he finds himself as a lowly assistant director with no real responsibilites. He meets student Seong-hie and falls in love, but he lies to her, saying that he is the film's director, hoping that she will be impressed and return his feelings of love.
Jun-hyoung is a training teacher who meets Hye-na, a very outgoing student. She always acts freely with out any restriction. As time as goes by, she slowly starts to interfere in his life. Sun-shul, who is very lonely, loves Hye-na. Jun-hyoung feels that it's hard to put up with Hye-na, but his mentor insists and tells him to take care of her. Jun-hyoung does not understand and feels as though this situation in unfair for him. Soon after, he finds out Hye-na's secret...