Su Qi-Er, a wealthy man living during the Qing Dynasty who loses his fortune and reputation as a result of a conspiracy against him. After being forced out onto the streets, Su dedicates his life to martial arts and reemerges as a patriotic hero known as the "King of Beggars."

When the child Arthur’s father is murdered, Vortigern, Arthur’s uncle, seizes the crown. Robbed of his birthright and with no idea who he truly is, Arthur comes up the hard way in the back alleys of the city. But once he pulls the sword Excalibur from the stone, his life is turned upside down and he is forced to acknowledge his true legacy... whether he likes it or not.