Anna gets frozen solid after Elsa accidentally freezes her heart. Hans turns out to be a bad guy, but his attempt to kill Elsa is foiled by Anna's frozen body stopping his sword. Elsa cries since Anna sacrificed her life for her. But, since Anna showed an act of true love for her sister, she thaws. Elsa realises that true love is how she stops the eternal winter. So, she unfreezes everything. Anna kicks Hans for tricking her. Then, everyone is happy and Anna and Kristoff become a couple.