During the period of Joseon Yeonsanjo, Hong Gildong was a hero who helped the unfortunate locals and fought against greedy governors. This legendary rebel, Hong Gildong's journey unveils his battle for love and justice.
In the Joseon Dynasty, Hong Gil Dong, a hero to the people and enemy to the elite, faces King Yeonsangun, who is despised by his subjects despite his royal lineage. Born a slave, Hong Gil Dong wins the hearts of the commoners while challenging the tyrannical rule of the powerful. This TV series depicts his struggle for justice in a kingdom ruled by oppression.