Dicatat oleh fh Ekal
Late at night in the kingdom of Arendelle, 5-year-old Princess Anna wakes her older sister, 8-year-old Princess Elsa to play. Elsa, possessing abilities to manipulate ice and snow, accidentally strikes Anna with her power. Their parents journey into the wilderness to seek the help of trolls who removes Anna's memory of her sister's power. The head troll, Grand Pabbie (Ciarán Hinds), informs them that if Elsa had struck Anna's heart, it would have been frozen. In order to protect Elsa from the world, she is ostracized from everyone, including Anna, leaving both sisters distraught and lonely. Their estranged relationship worsens when their parents are killed during a storm at sea.
Three years after the death of their parents, the people of Arendelle prepare for Elsa's (Idina Menzel) coronation ceremony. Among the dignitaries is the Duke of Weselton (Alan Tudyk), a tradesman who wants to exploit Arendelle for profit. Excited that the castle's gates will finally open to the public, Anna (Kristen Bell), expresses her hopes of falling in love with someone. Strolling through the streets, she meets Prince Hans (Santino Fontana) of the Southern Isles, and the pair quickly develop a mutual attraction for each other. Despite Elsa's concerns, the coronation goes off without incident, and the two sisters begin to bond at the afterparty. During the reception, Hans proposes to Anna, who immediately accepts. Elsa, however, refuses to grant her blessing on the marriage, setting off an argument between the sisters, which culminates in Elsa's powers being exposed to the guests.
Panicking, Elsa runs away for the North Mountain, inadvertently unleashing an eternal winter on the kingdom. Lamenting her failure at keeping her powers contained, Elsa declares herself free and decides not to return, and instead uses her powers to create an ice fortress and a snowman. The following morning, Anna searches for Elsa, determined to return her to Arendelle, end the winter, and mend their relationship. While at Oaken's (Chris Williams) Trading Post, Anna meets ice trader Kristoff (Jonathan Groff) and his reindeer, Sven, and convinces him to guide her to the North Mountain. After an attack from wolves, the pair meet Olaf (Josh Gad), the snowman Elsa created, who leads the group to Elsa's hideaway.
Arriving at her palace, Anna and Elsa are reunited, and the former attempts to persuade her sister to return. Elsa, however still harboring fears of hurting Anna . Elsa becomes agitated and strikes Anna in the heart. Elsa, in desperation to get her sister to leave, creates a giant snow creature that throws them out. After they outrun the snow monster, Kristoff notices that Anna's hair is turning white, and decides to take her back to his adoptive family of trolls. After a mix-up, she collapses and Grand Pabbie reveals that only an act of true love can thaw a frozen heart, or else Anna will die. Kristoff races back to Arendelle to get Anna to Hans, believing true love's kiss will save her.
Meanwhile, Hans, who had gone on a search for Anna, brings Elsa back to the castle, after she was knocked unconscious from an earlier skirmish with Weselton's men. Shackled in a cell for her protection, Hans pleads with her to undo the winter to no avail ,as Elsa admits that she is unable to control her powers. Anna is returned to Hans, as she continues to freeze. She begs him to kiss her to break the curse, but Hans refuses, revealing his true plan of marrying Anna to seize control of Arendelle's throne. He leaves Anna to die and goes to kill Elsa, whom he frames for her sister's apparent murder.
Elsa escapes from prison and heads out into the blizzard on the fjord. In the castle, Olaf comes to Anna's rescue and reveals Kristoff is in love with her. The two then travel out together onto the fjord to find him. Hans cuts Elsa off and tells her Anna is dead because of her actions. In Elsa's despair, the storm immediately stops, giving Kristoff and Anna the chance to reach each other. However Anna, seeing that Hans is about to kill Elsa, throws herself between the two, and subsequently freezes solid. After a few moments of grief from Elsa, Anna begins to thaw, as a result of her choice to sacrifice herself to save her sister, constituting an "act of true love".
Elsa realizes love is the key to controlling her powers and thaws the kingdom while maintaining a personal microclimate for Olaf to prevent him from melting. Hans is sent back to his own kingdom in chains, Elsa cuts off trade with Weselton, and Anna and Kristoff share a kiss. Elsa promises to never close the castle gates again and shares a long-awaited moment of reconcilement with Anna.