Based on the traditional story of a girl who makes her blind father see by donating 300 bags of rice to Bongwon Temple.
In 1592, admiral Yi Sun-sin and his fleet face off against the might of the invading Japanese navy and its formidable warships. As the Korean forces fall into crisis, the admiral resorts to using his secret weapon, the dragon head ships known as geobukseon, in order to change the tide of this epic battle at sea.
The story of Admiral Yi Sun-sin, the turtle ship, and the crew aboard the ship, which unfolded for two months from the Battle of Hansan to the Battle of Busanpo during the 7-year period of the Japanese Invasion of Korea.
When the scholar Jeong Yak-jeon is exiled to Heuksando Island during the Catholic Persecution of 1801, he decides to write a fish-based encyclopaedia.
Prince Yeonsan-gun turns into a tyrant out of grief for his mother's death. He orders beheadings of all the officials who displease him or who advised the previous king to depose the queen. He becomes crueler by the day. But in 10th year of his reign, he is kicked out of the throne and dies a tragic death.
Kim Jeong-ho's father died due to an erroneous map. Because of this, Kim Jeong-ho has a strong desire to make his own map. He begins a complete block map of Joseon.
When King Heon-kong falls ill, a power struggle erupts over who will inherit the throne. Tired of all the infighting, the ministers arrange for a branch of the king's family, which had lost all its wealth and was living on remote Ganghwa Island, to inherit. But the heir to the throne is reluctant to leave his island home.
When King Myeong-jong dies, his son takes the throne and the old king's concubines are expelled. One of the concubines becomes pregnant. Believing that only she knows the true father, she claims the unborn child is the former kings and has a claim to the throne. The enemies of the new king, ignoring facts, decide to support her claim and threaten to start a civil war.
Queen Yun reigned with King Sunjong since she was just 13 years old. She hid the royal seals needed to complete an agreement between Korea and Japan which would lead to Korea's annexation. However, her patriotic display wins her many enemies.
Mu Myeong is a Joseon dynasty headhunter who meets and falls in love with lady Ja Yeong who will become the future Empress Myseongseong. A few years later, Ja Yeong enters the royal palace to marry King Gojong. Mu Myeong still having feelings for Ja Yeong and in an attempt to get closer to her becomes her personal body guard.