In the short time of her marriage to King Richard IV, the only surviving son of King Edward, who was believed to be murdered by Richard III, Catherine and her baby and ladies follow Richard Plantagenet to England to begin the struggle to regain his throne from the Tudor usurper, King Henry VII. Richard Plantagenet, known as Perkin Warbeck in England, is considered an imposter with intentions of stealing the English crown, but his bearing and likeness to his father Edward is too marked to be missed.