Dreaming of making a way station for his sister and the villagers who have no choice but to commute along the dangerous train tracks every day, Joon-kyung sends many letters to the President, but with no reply. Ra-hee, who has a crush on Joon-kyung, does everything she can to help him meet the President.
Soo-jin, who lost her memories due to a horrible incident, starts suspecting her husband. She is confused between reality and illusion, truth and lies.
A prosecutor is falsely accused of sexual assault in a suicide note from a woman that he is convinced was actually murdered. As he investigates her death to clear his name, he realizes that the truth lies in a huge financial scandal.
At his mother's 70th birthday party, Yong-nam runs into Eui-joo, who rejected him in college. When the city is engulfed in toxic gas from a terrorist attack, the two must find a way to escape using all the techniques they learned in their college rock climbing club.
Dae-ho, an investigative journalist, seeks to track down the whereabouts of his son who was abducted three years ago. With the help of a detective and a psychiatrist friend, he will retrace his memory of the incident through the use of lucid dreaming techniques.
Lee Hyeong is a talented songwriter. He happens to connect people who are not good with love. Those include Hyeong-Gyeong who wants to become a singer, but she suffers from stage fright. Scully is a high school student. She helps Lee Hyeong's spirit. Chan-Young is a colleague of Lee Hyeong and he likes Hyeong-Gyeong, but in vain.