"The Heir of Ragnarok"

Before the snow, there was the sun. Before Arendelle, there was the cosmos.

To the mortal world, Prince Hans of the Southern Isles is a disgraced traitor awaiting a cold execution, and Queen Elsa is the mythical Fifth Spirit ruling the enchanted forests. But the ice of Ahtohallan holds secrets older than the mortal realm itself. Deep within the frozen rivers of memory, Elsa uncovers a shattering truth: she is the reincarnation of the primordial Snow Queen, and Hans is Solteris the radiant, sun-wielding Prince of Muspellsheim.

Millennia ago, they were the Architects of Rebirth, destined to usher in a new universe. But a rogue faction of tyrannical gods, desperate to rule the old world forever, assassinated the Snow Queen and tore the lovers apart. Broken by grief, Solteris bargained his godhood and his memories away to follow her soul into mortality. But a chaotic prank by his god-brother Loki went horribly wrong leaving Hans with a shard of a cursed troll mirror in his heart, driven by a twisted, forgotten instinct to conquer a kingdom just to find his way back to her.

Now, the rogue gods have infiltrated the mortal courts, orchestrating Hans's execution to permanently extinguish his divine soul and freeze the cosmic clock forever. As Surtur's apocalyptic wrath threatens to burn the realms to ash, a panicked Loki operates from the shadows, and Elsa must race against time to save the "villain" who tried to kill her.
To save the universe, the Snow Queen must rescue her forgotten husband and reclaim a love that once shook the foundations of the stars.