Originally, it was Hans' plan to marry the soon-to-be queen regnant of Arendelle so he could rule the kingdom with her by his side. However, he gave up on the idea when he got word of her dislike of being near people. It was unknown to him that she was doing this to keep her subjects safe from her unstable winter magic. He did not learn of her abilities until she and Anna got into an argument about Anna and Hans' engagement. The instability of her emotions caused her to inadvertently reveal her powers to everyone at the ball. From then on, as each event unfolded, he had to constantly change his plan to become King of Arendelle. From making the Queen seem like a monster in the eyes of the public then killing her to end her accidental winter curse and become a hero of the people. His pursuit of the crown would be complete without having to marry Anna. This also required getting into Queen Elsa's good graces by stopping her from killing the Duke of Weselton's thugs after they provoked her into an angered state and appearing to show mercy towards her, when it was ultimately to get her to let her guard down for a chance to kill her with the chandelier, then again after he lied to her about Anna already being killed by her accidental curse when chasing her out to the frozen fjords. However, Elsa was saved from his treachery by Anna and the plot for usurpation was foiled.