Two North Korean terrorists posing as Japanese tourists under the names of Shin Icho and Ma Yumi, blow up a Korean Airline flight enroute to Baghdad. When investigators catch up with the two in Bahrain, they take suicide pills but Ma Yumi is revived and forced to stand trial for her crimes.
While Professor Yun, one of the world's leading authority on genetics, is abroad, Oh In-cheol and his fiancee Yun Jin-suk take the professor's papers from his laboratory. In-cheol and Jin-suk are researching the principle of the chlorophyll and a pill that can make people invisible. In-cheol becomes invisible and catches bank con-men and child kidnappers, etc. He works hard to expose society's evil and he is pasted all over newspapers. However, the criminals follow him and discover his identity. They steal his invisible pills. The criminals become invisible and they go on to commit their crimes such as robbing banks. But they don't have any pills to reverse the effects. The criminals ultimately come to In-cheol looking for the reverse pills when they are caught by the police.
Magistrate Hwang's daughter Jin-yi, is jilted before her wedding because a shoe maker was smitten with her and commits suicide. Jin-yi becomes a courtesan, and becomes famous for her wits and beauty. She falls for Byuk Kye-su, but he's chosen to be an envoy to a far off kingdom. When he leaves she feels so betrayed she takes to a life of wandering. She meets Lee Saeng, a destitute scholar, and stays with him until she discovers he's going to sell her to a group of itinerate clowns. Instead, she joins them willingly.
Abengo Corps is under the direct control of headquarters of Gen. Douglas MacArthur. In order to conceal the Inchon Landing Operation, Abengo is assigned to the Wonsan Landing Operation as a decoy mission. With the operation soon at hand, the members of this operation go on a special vacation to Busan. Among them is Il-gyu. He meets with Bae Su-na, a refugee, and they spend a passionate, touching night of love together. The members perform their duties as ordered. Lieutenant Colonel Koh receives a coded message from the headquarters. Koh realizes that his men are a diversion for the Inchon Landing Operation. Lieutenant Koh is angered and resentful. And Lieutenant Sung is chosen to enter the battle instead of Lieutenant Colonel Koh. During the January 4 Retreat, Lieutenant Sung meets Su-na, who has had Il-gyu's son. Lieutenant Sung helps her out.
Sooni is the daughter of a strolling male entertainer. After her mother left her, Sooni was raised by Dori's mother and is engaged to Dori. But Dori's friend Chil-sung also has crush on her. One day, Dori wins the wrestling game at the marketplace and earns money as reward. With that money, he buys Sooni a jade ring. However, an air of misfortune begins as Mr. Kim, who is a forest keeper shows up.
Sang-hun, a painter, and Yeong-hun, a doctor, are brothers. Sang-hun's girlfriend left him for another man, and he draws her portrait everyday. Yeong-hun, the older of the two, makes a medical mistake, and his young patient dies. Because of the guilty conscience, he abandons the career as a doctor and devotes himself to writing a novel. However, the brothers have high self-esteem and finally overcome their weaknesses to make a fresh start.
Suk-hee's mother is remarried to a man who has a son a year senior than Suk-hee. The two don't get along well first, but soon they grow intimate. Suk-hee learns, though, that she needs to give up her love for her mother's happiness. One day she leaves her mother and her new family, and goes on her way to her hometown, where she sees a Zelkova tree.