In this enchanting movie, the themes of family and selflessness take the spotlight as Gerda embarks on an emotional journey to reunite with her parents, who have been lost to the relentless North Wind. To assist her in this noble quest, she gathers a diverse team including the spirited pirate Alfida, the jovial troll Orm, and his clever companion, Luta, a cunning weasel. The story unfolds several years after the events of The Snow Queen and its sequel, where Gerda and her friend Kai emerged as beloved national heroes, celebrated for their valor in vanquishing the menacing Snow Queen. Now, weary from their travels, they decide to visit Orm and soon find themselves joining forces with Alfida to venture into the land of trolls.
During their adventures, they encounter Rollan, a lighthearted Spaniard captivated by urban legends who indulges them with tales of gallantry. Gerda feels an urge to share her own stories, but when she inadvertently discloses her victory over the Snow Queen, Kai's concern becomes apparent; they had pledged to remain modest about their past. Rollan, fascinated by her revelation, is caught off guard, prompting Kai to leave with Alfida, while Gerda and Rollan attempt to mend the situation.
As Rollan regains his composure, he spins a captivating narrative regarding the Wishing Stone, a legendary object believed to fulfill any desire. This mythical gem is thought to be hidden within the mysterious caves beneath Lake Gao, becoming the focal point of Gerda's mission to locate her parents. With Rollan's guidance, they set off on a riveting adventure destined to challenge Gerda's perseverance and stretch the limits of possibility.
Together, Gerda and Rollan delve into the forbidden troll caves, braving challenges that lead them to an underground sanctum protected by formidable mechanical sentinels. With cleverness and ingenuity, they evade the threats and reveal the resting spot of the sought-after Wishing Stone, discovering it comprises two elements: the Stone of Fire and Ice. Upon touching it, they unwittingly become vessels for the spirits of the Snow Queen and the Fire King, granting them extraordinary ice and fire powers.
As the duo tries to master their newfound abilities, they quickly attract the attention of the soldiers serving the troll king, Arrog. In their frantic escape, their powers accidentally unleash chaos upon the environment. From a distance, Kai and Alfida observe the disturbance and rush to ensure Gerda's safety.
Reuniting with Orm, Gerda uncovers the existence of a mystical library that holds ancient troll knowledge. Utilizing her ice train, she and Rollan return to the troll village, gaining entry to the library where they discover the curse that has enveloped them. They learn that if they do not break free from the spirits by sunset, they will face dire consequences. The only chance to lift the curse lies in returning to the Wishing Stone to liberate themselves from the spirits' grasp.
However, their mission encounters a setback when a devious troll shaman tries to thwart them. Just when defeat seems imminent, Arrog intervenes, placing his trust in Gerda and granting her and Rollan access to the innermost sanctum of the Wishing Stone. With urgency propelling them, they race toward the stone, leading Gerda to renounce the Snow Queen's spirit, only for Rollan to betray her, revealing his wicked true intentions—he orchestrated the curse to seize the Fire King's power for himself.
Leaving Gerda in peril, Rollan returns to the troll village, where he finds himself completely consumed by the Fire King's spirit, transforming him into an agent of destruction aimed at the unsuspecting villagers. As turmoil erupts, Kai and Alfida arrive at a pivotal moment, with Kai freeing Gerda and allowing them a chance to repair their fractured bond. But their reunion is fleeting, as Gerda quickly devises a plan to confront the havoc wreaked by the Fire King in the village.
Her approach involves using barrels of ice to entrap the Fire King and drive him into the lake, yet their resources dwindle right as victory seems within reach. In a moment of distraction from the Fire King's counterattack on Kai, Gerda seizes an opportunity, commandeering an ice locomotive to collide with the Fire King, plunging them both into the icy depths of the lake.
In the aftermath of this dramatic confrontation, villagers grieve what they believe to be Gerda's demise. However, defying expectations, she emerges from the icy waters unscathed, while joyous trolls celebrate their newfound liberation, showering Gerda and Kai with treasures of gold from Arrog.
With Gerda and Kai preparing to set sail alongside Alfida, they are unexpectedly guided by a tiny snow fairy, born from the Snow Queen's magic, leading them to a frozen mountain range. Here, a stunning revelation unfolds—the long-enshrined forms of Gerda and Kai's parents are encased in ice. With the snow fairy's enchanting magic, they are finally thawed, allowing for a heartfelt reunion between Gerda, Kai, and their long-lost family, embodying the true essence of love and kinship.
