Thousands of years ago, a race of strange creatures that the Dark Elves tried to send the universe in darkness with a weapon called Aether. Stop fighters from Asgard with them, but their leader escaped Malekith to wait for another time. The Warriors will find Ether and why it can not be destroyed, trying to hide it. Nowadays Jane Foster awaits the return of Thor, although it has been two years since their last time saw another. Meanwhile, Thor tries to bring peace to the nine areas. Jane has an abnormality similar to Thor came on earth. She goes to investigate, find a wormhole, and get sucked. Back in Asgard, Thor wants to return to Earth, but refuses to let his father Odin. Thor learns from Heimdall, who can see into all the kingdoms that disappeared Jane. Thor returns to earth as it resurfaces Jane. But when some police officers trying to arrest her, an unknown energy their push. Thor of Asgard then leads Jane to find out what happened to her. When the energy is released again, is that when Jane went, crossed the path of the ether and its entry. Malekith, he replied that the time to strike is now in search of the ether. Falls Asgard and Thor’s mother Frigga killed protecting Jane. Odin wants to keep Jane at Asgard so Malekith will. Thor does not agree with his plan, so his cohorts, he decides to remove Jane. He enlists the help of his brother Loki. Unfortunately, the reasons for Loki still unknown.