Action-packed and visually dynamic, the film at times feels like a sci-fi war movie. But instead, it reverberates with family dynamics in mystical realms and numerous characters. Unlike its first installment, this one is on a much bigger scale and a far cry from a superhero film.
The film structurally begins in the same way as the first "Thor", with a voiceover by Anthony Hopkins, who plays Odin the ruler of Asgard, and a back story.
The voiceover states: "Long before the birth of light, there was darkness and Dark Elves ruled the universe with the help of aether (pronounced eether) an ancient force of eternal destruction."
The back story reveals Malekith (Christopher Eccleston), the Prince of the Dark Elves is all set to destroy the Universe, but his attempt is thwarted by Thor's grandfather and the Aether is discarded onto a planet.
Years later, on earth, the aether enters the bloodstream of astrophysicist Jane Foster (Natalie Portman) and there are forces at work. Malekeith is back on the prowl. Jane gets connected with her long lost love Thor (Chris Hemsworth) and Loki (Tom Hiddleston) the less trustworthy brother of Thor, accompanies him to save the day. This makes the core theme of the story.