Hong Seol, a student from a poor family, meets a rich Yoo Jung, who is her senior at her university. They both develop a rather inconvenient relationship after knowing each other.
In 1999, a dance duo teams up with a cheerleader to create a cheerleading club. Together with seven other members, they form the 'Millennium Girls.' Their mission: to lead the struggling Geoje Commercial High School soccer team—known for always finishing last—to victory.
An assistant to a TV producer, eager to stay off his bad side, promises to convince her former professor, a famous but reclusive academic, to appear on their show, which helps locate long-lost persons. Who does grey-haired Professor Yun Suk-Young want to see again more than anything? The answer to that question lies decades in the past.
To-il tutors high school student Ho-hoon, but she soon falls in love with him and gets pregnant. The film unfolds a series of playful happenings when To-il embarks on a journey to find her birth father for the wedding, though she is living with her step-father.
Hyun-tae, In-chul and Min-soo have been best friends since childhood. Their relationship is forever changed after Hyun-tae's mother asks In-chul to commit insurance fraud by destroying her arcade.
Chang-seok's marriage failed and he is about to publish a novel based on his own experience. After he meets various people, Chang-seok changes his mind and starts weaving yet another story.
The story of boys who are scattered in the past, present, and future to find the star of hope in order to save the Earth which is devastated by a virus spread by a group of evil.
With each day feeling hopeless and bleak, Kang-jin's life takes a dramatic turn when he stumbles upon a lost envelope of money belonging to Rang. Using this newfound wealth, he takes a stand against Nam-young's girlfriend Da-young. But when Nam-young discovers Kang-jin's actions, he strikes back by stealing his money and issuing dangerous threats. With nowhere to turn, Kang-jin confides in Rang, who reveals a secret knowledge of the debt-collecting world. Together, they embark on a thrilling journey of power and control, as Kang-jin takes his first steps into the world of loan sharks.
After the death of his father who had left the house and his family, his debt was inherited by Sang-woo who is unable to cope with the debt. So he finds another heir, a half-brother and his mother, to fend off the debt of his father.
Joon-seok is sent to prison for his involvement in Dong-soo's death. He meets Dong-soo's son in prison, keeps his identity a secret, and agrees to join forces when he is released. All of their plans fall apart when Sung-hoon finds out the truth.
Jiwon, a motivated new police officer, is strangely bothered after meeting Osun, a social worker. On a hot summer day, a kidnapper sends a message saying, ‘If you want to save the kidnapped child, donate money to the welfare center.’ The incident becomes a national concern as the media report it. Somehow, Jiwon doubts the link between the case and Osun.
Even in the harshest environments, firefighters must focus on extinguishing fires and rescuing everyone there. At 3:47 AM on March 4, 2001, the 119 emergency call center receives a phone call about a fire that has broken out in the Hongje-dong neighborhood. Firefighters, including newcomer Cheol-woong, rush to the scene.
In the year 1999, a young woman leaves her quaint seaside house and returns to the city, leaving in the mailbox a card for the next owner, with instructions to forward any mail of hers to the new address. In the year 1997, a jaded young architect moves into the same house and finds the letter. His reply, which he slips into the mailbox, finds its way to her, beginning a parallel-time love story separated by a span of two years.
Hà Mi is a young musician that has a great passion for composing music. G-Feel - a genius musician of Korea, who is facing with the pressure from his fame. Between two strangers, living in two countries, there's a special bond that is Yoon Hee. The story about that speical relationship between them is revealed when G-Feel decides to travel to Vietnam after an incident.