A physical education student is deemed too disruptive to the studious atmosphere of his lodgings and is kicked out forcing him to stay at his friend's apartment

A royal inspector Kim Sang-Won disguised as a traveler arrives at a village where they say a ghost appears to examine the details. Finally he is in the disguise of a resented spirit because of broken engagement and goes to the abandoned house where he discloses that Lee, a scholar, and his daughter In-Yeon murder the chief of the village Kim's whole family. Also he tells official circles and people that ghost can not be existed in any circumstances.

Jang-go and Sorimsa go to Seoul in hopes of enrolling in the police academy. However, they are conned by Du-keobi who gets the pigs and dogs they hoped to sell to pay for their tuition. So they end up working at a restaurant run by the sisters Ae-ri and Mal-suk. But, due to the unexpected con by the head of Du-keobi's gang, they find out that Kang Dal-seong and Do-wang are also part of the gang. Dal-seong and Do-wang had killed Jang-go's parents and run off to Japan with their fortune. They are all involved in drug trafficking now. Along with the investigators, Jang-go and Sorimsa use their wits and resources to make a clean sweep of the gang.

A highschool student suffers from depression, resentment, and lonliness when he is forced to repeat his final year but his friend's are accepted into college.

Nicknamed Yalkae, notorious high school prankster Du Su (Lee Seung Hyun) is always up to no good with his buddy Yong Ho (Jin Woo Young). Both of them have been held back a year, but instead of studying they continue to cause trouble for their teachers and classmates. Du Su gleefully pulls a prank on his tattling classmate Ho Cheol, but he has a change of heart when he finds out Ho Cheol gets injured as a result.

Jang Jung-Han is a commander of 330 unit who is with his wife and son Kyu-Shik. By chance Kyu-Shik meets a country boy In-Dol who asks him to find out his sister. The 330 unit comes upon Kyu-Shik's kidnap while it is searching for a couple burglar on motor cycle. Kim Min-Su stole money to pay for his son's medical charge 7 years ago. At that time he solicited Jang Jung-Han not to arrest him but he is arrested and jailed. After finishing his imprisonment, he finds that his wife remarried and his son is dying of maltreatment. He kidnaps Kyu-Shik to retaliate, but he gives up because Kyu-Shik is so simple and innocent. The commander solves the motor cycle case and finds that the woman is In-Dol's sister who feels regret her faults.