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.

A girl wakes up in a huge secret laboratory, then accidentally meets another girl who is trying to protect her house from a gang. The mystery girl overthrows the gang with her unexpected powers, and laboratory staff set out to find her.

Jeong-do became a Seoul University Law student with the support and sacrifice of his mother. However, ever since his mother passed away, he hasn't able to pass the bar exam for 10 years, as his rich girlfriend Jin-kyeong waits for him. To make matters worse, his father is fighting with lung cancer and he has medical bills to take care of. Then appears Kyeong-hee, a girl Jeong-do almost became siblings with due to his dad's affair with another woman...

Lee Gong-jin, a young tailor, helps the Queen with her dress and both fall in love with each other. However, his success catches the ire of Jo Dol-seok, the royal tailor, who vows retribution.

A gang of clowns is hired by an unpopular king to serve as propagandists who fabricate positive rumors and stage miracles to improve his personal image.

Jong-dae and Yong-ki make a living by picking up paper and empty bottles. Both then join different gangster clan and becomes involved in a struggle of political interests over development in Gangnam, Seoul.