Thor: The Dark World

Eons ago, Bor, the father of Odin, engaged in a fierce confrontation with the Dark Elf Malekith. The epic battle was sparked by Malekith's desire to harness the Aether and plunge the universe into chaos.

During the rare alignment of the nine realms, Bor seized the Aether from Malekith using the Bifrost. This act thwarted Malekith's ambitions and marked a turning point in the battle.

Bor and his warriors emerged victorious after a challenging fight on Malekith's home turf of Svartalfheim. They successfully secured the Aether within a stone column, but the cost of victory was significant.

Understanding the immense threat posed by the Aether, Bor ordered that it be buried deep in a location where it could never be unearthed. This was done to protect the universe from its catastrophic potential.

Unbeknownst to Bor, Malekith and some surviving Dark Elves were preserved in suspended animation. Their awakening would mark the resurgence of their dark ambitions for the universe.

In present-day Asgard, Loki finds himself imprisoned for his past transgressions against Earth. Despite his justification of his actions as a desire to rule benevolently, he is spared the death penalty thanks to Frigga's compassion.

While Loki is imprisoned, Thor is busy with his fellow warriors stabilizing the Nine Realms after the reconstruction of the Bifrost. They face marauders on Vanaheim, only to learn of an impending event known as the Convergence.

In London, Dr. Jane Foster and her intern Darcy investigate strange occurrences at an abandoned factory. Jane accidentally becomes infected by the Aether's power when she comes into contact with the stone column where it is hidden.

Thor is alerted by Heimdall about Jane's situation and rushes to Earth. He discovers that in her contact with the Aether, she has unleashed a formidable and mysterious force, endangering not only herself but the entire realm.

Odin reveals the history of the Dark Elves, who once ruled the cosmos before the establishment of the Nine Realms. With Malekith's awakening, fears arise that he will seek revenge and reclaim the Aether.

In a tragic turn of events, Frigga sacrifices herself to protect Jane during an ambush by Malekith. This act of bravery forces Malekith to retreat without the Aether, underscoring the vulnerability of Asgard.

Driven by vengeance and duty, Thor decides to confront Malekith, defying Odin's orders. He teams up with Loki and uses a secret portal to Svartalfheim, setting a trap by using Jane as bait.

Thor and Jane track down Malekith, who plans to unleash chaos from Greenwich. The confrontation escalates through shifting portals until they manage to return Malekith to Svartalfheim, leading to his death.

Upon returning to Asgard, Thor chooses not to take Odin's offer of the throne, earning his father's respect. He recounts Loki's sacrifice, only for Odin to reveal that his form had shifted to that of a grinning Loki.

In a mid-credits scene, Volstagg and Sif visit the Collector to entrust him with the Aether, ensuring its safety away from Asgard. The Collector cryptically remarks about the significance of the Infinity Stones.

The post-credits scene reintroduces Jane and Thor on Earth as they face the havoc caused by a frost monster from Jotunheim in London. This chaotic reunion hints at future adventures and challenges.