The story follows a 14-year-old girl that has spent her entire life living in the woods. She has been trained by her father to be an assassin. She eventually "leaves the wilderness for the first time to assassinate a high-ranking government official who has a lot to hide."
The script for Hanna was written by Seth Lochhead.
Joe Wright (Atonement) is directing this project. It will start shooting in Germany this March.