The Taylor family from River City has been targeted with a kill order from the assassin organization Mist Pavilion, all for the sake of seizing the legendary Ginseng King—a treasure capable of summoning the invincible Grandmaster to their aid. As Fiona Johnson and other assassins from Mist Pavilion close in, Nathan Martin, the unparalleled Grandmaster invited by Evelyn Taylor's father, steps forward. Honoring his promise, he unleashes his power to crush the rebellion and suppress the assassins of Mist Pavilion.