It starts when Loki is being put int he Asgard prison and Thor is in one of the nine realms fighting the dark elves. They are scary. Then on Earth Jane Foster finds the Aether and it goes inside her but this is what the dark elves need to destroy everything. It takes her to another place and Hemidall couldn't see her anymore so Thor got worried and went against his dad and came back to Earth to see her. He saw she was sick and took her back to Asgard to fix her. Thor's father is the king and he thinks that it was a bad idea to bring her there. The elves show up on Asgard to get the Aether back and start a big fight with all the people on Asgard. It is a bad fight and during the fight Thor loses his mother. I was very sad that his mother died. She was really nice to Jane and was a good fighter. Thor is mad and comes up with a plan to trick the elves and talks with his trusted friends. He then gets Loki out of prison. There was a funny part when Loki was walking with Thor and turned into Captain America. I liked that. Then they take Jane back to the dark elves planet. Thor and Loki get into a huge fight. I was really upset at first when Loki and Thor were fighting on the dark planet, and then Loki chopped off Thor's hand. I was mad at Loki. But then it turns out to be an illusion and then I was better. But then during the fight Loki get killed and Thor gets very mad. Thor takes Jane into a cave and Jane suddenly gets a phone call from the guy she had dinner with. Jane figures out how to get back to Earth and she and Thor go back and meet up with Dr. Erik Selvig, Darcy, the intern, and the elves that they fight. The big fight was cool and things kept disappearing and appearing. It was a huge war and Thor wins! Thor decided to give up being a king because he really loves Jane and then something happens but my mom said I'm not allowed to tell it.
If you watch the scene carefully the guard from Asgard that is on the dark planet has a strange green glow and it means something but I'm not supposed to tell you it's about Loki. There is also a part when Thor has his shirt off and I think everyone watching liked that part. There is also more after the credits start so stay and watch those.
My favorite characters were Thor and Loki.