Ragnarok means the destruction of Asgurd the home of Thor.
In order to prevent that Thor try to destroy to most known enemy . When he reaches home he sees his brother Loki is disguised of Oden. They came to Earth for the purpose of finding Oden and meet up with Dr Stephen Strange.
After getting in touch with Oden they become know about that they have a sister name Hela(queen od death)
she destroyed the Thor Hammer and send Thor and Loki in a another planet where Thor Was forced to fight with Hulk and they started forming the force against Hela.
Performance of each and every actor/actress is really good.
The back ground music is really catchy
The director makes the movie really entertaining.
If you are a Marvel fan and love them in a comedy action movie the its a very good movie. I personally Liked it