Set in 17th century Joseon Dynasty, this story follows the Crown Prince and his three guards in an unforgettable journey. Based on the renowned French novel with the same title, "The Three Musketeers" is a three-arc historical drama about Prince Sohyun and his three guards in the Joseon Dynasty. This Korean twist on the classic tale will follow a poverty-stricken young man of noble birth determined to join the royal military forces. This man, named Park Dal-Hyang, will cross paths with the Prince and eventually become the third member of his guard party.