*Warning: Spoilers ahead*
At the premiere of Frozen 2, we laughed (oh, Olaf!), we cried (sisterly feels!) and we finally found out more about what happened to Elsa's and Anna's parents, who had previously been lost at sea.
As the film opens, three years after the events of the first film, Elsa starts to hear a strange sound from the north calling her. Then her kingdom, Arendelle, has to evacuate after the elements revolt—fire goes out in the streetlamps, the earth rises up in the cobblestone streets, water freezes into midair crystals that crash to the ground and the wind gusts terrifically. Together with her sister Anna, Kristoff, Sven the reindeer and Olaf the snowman, the band is back together to find the origin of the voices that are calling to Elsa, which seem to be coming from the direction of the Enchanted Forest. The girls remember the place from a story their father told them—as a boy, he'd visited with the girls' grandfather. There, the two helped the townspeople from Arendelle build a dam for the Northuldra tribe, before a fight broke out between the two groups, leaving their father, the young prince, injured. The place has been cut off from outsiders behind mists ever since...and the girls' father never knew who rescued him from the battle before being seriously harmed or trapped behind the mists.
In the ensuing adventure, which leads the gang into the Enchanted Forest and beyond, Anna and Elsa find out a lot of family secrets. Spoiler alert: First off, there's the fact that their grandfather surprise-attacked the Northuldra tribe, leading to the elements' angry attack on Arandelle all these years later. And the mysterious good samaritan who rescued their father from the ensuing battle? It was none other than their mother, who at the time was no more than a girl, and was revered by the Northuldra tribe as having magic powers. So, that's where Elsa's special powers came from.
And, most poignantly of all, Elsa and Anna discover exactly what their parents were doing on the high seas when they were overtaken by the waves. It turns out the couple was searching for the origin of the magical powers the women shared—which was believed to be found upriver to the north. In the scene's most wrenching moment, Elsa "reads" the water-memory of her parents' soggy shipwrecked vessel. And the result is a life-sized frozen statue of her father shielding her mother from the waves as they smashed through the hull to engulf them both.
Gah! Elsa feels guilt, Anna gives her a sisterly pep talk and the emotional complexity of Frozen 2 can't help but melt our hearts.