Thousands of years ago, a race of beings known as Dark Elves tried to send the universe into darkness by using a weapon known as the Aether. Warriors from Asgard stop them but their leader Malekith escapes to wait for another opportunity. The warriors find the Aether and since it cannot be destroyed, they try to hide it. In the present day, Jane Foster awaits the return of Thor although it has been two years since they last saw once another. In the meantime, Thor has been trying to bring peace to the nine realms.