Disgusted with the acting King John, who rules England in the stead of his brother, King Richard the Lion Hearted, the King of Spain declares war on England. The English Ambassador to Spain delivers the bad news to John. Despite the protestations of Sir Boltyn, Prince John enlists the aid of The Green Falcon to build an army to defend the nation. Convincing the people that they acted in the interests of England and King Richard, the knight raises the necessary troops. The Falcon’s army routes the Spanish Armada.