During the year 320, Pars finds themselves in the midst of a war with a hostile neighboring kingdom known as Lusitania, led by their ruler King Andragoras III. Despite his tense relationship with his father, young Prince Arslan is unwavering in his determination to prove his worth in the battlefield. Unfortunately, a betrayal by one of the king's trusted advisors leads to a devastating loss for the Parsian army, resulting in the siege of their capital city, Ecbatana. In order to reclaim their land, Arslan and General Daryun embark on a hazardous journey to gather allies. However, their expedition becomes more challenging when they encounter conflicting factions from other kingdoms and a mysterious figure wearing a silver mask who played a significant role in Lusitania's victory. This enigmatic character holds a secret that could potentially strip Arslan of his rightful claim to the throne. But Arslan refuses to be deterred and is determined to overcome the obstacles that lie ahead to form a powerful alliance and regain his inheritance. Through this treacherous undertaking, Arslan will grow into a skilled leader and fulfill his ultimate destiny as king.