Updated Info:
Here is the story on movie
The story is set several years after the battle with Majin Buu. Birusu, the god of destruction who has maintained the balance of the universe, has awakened from a long slumber. Hearing rumors of a Saiyan (Saiya-jin) who defeated Freeza, Birusu comes looking for Goku.
Excited that a powerful oponent has appeared after so long, Goku ignores King Kai's advce and challenges Birusu in a battle. However, Goku is no match for Birusu's overwhelming power and is defeated. Birusu leaves after uttering an ominous message, “Is there anyone on Earth more worthy to destroy?” Will Goku and the others really be able to stop the God of Destruction?!
link: 2013's Dragon Ball Z: Battle of Gods Film Story Outlined - Interest - Anime News Network
Here is the story on movie
The story is set several years after the battle with Majin Buu. Birusu, the god of destruction who has maintained the balance of the universe, has awakened from a long slumber. Hearing rumors of a Saiyan (Saiya-jin) who defeated Freeza, Birusu comes looking for Goku.
Excited that a powerful oponent has appeared after so long, Goku ignores King Kai's advce and challenges Birusu in a battle. However, Goku is no match for Birusu's overwhelming power and is defeated. Birusu leaves after uttering an ominous message, “Is there anyone on Earth more worthy to destroy?” Will Goku and the others really be able to stop the God of Destruction?!
link: 2013's Dragon Ball Z: Battle of Gods Film Story Outlined - Interest - Anime News Network