The Tale of Nokdu S01E01 - First Encounter

Nok Du, who is living on a small island, witnesses his father and brother get attacked by a group of assassins. He decides to leave home and find out who they are and work for. He follows the leads and arrives in Hanyang. At a market, he runs into a man who plans a terror attack on the King. However, they soon get arrested because of an incident at the market.