Sixteen-year-old girl named Hanna grew up in the North of Finland. Her father Erik was bringing up her daughter and Hanna has no idea what modern technology, but she has the survival skills and speaks many languages. But Erik has a special plan for Hanna, she has to liquidate Marissa Wiegler, a CIA agent. A few years ago, Marissa had to kill Erik, who has betrayed the Agency. Hanna manages to kill Marissa and escape, capturing secret file on your DNA. But the girl does not know that Marissa has sent to this meeting his double, and survived. Now Hanna we need to get to Berlin, where her father is, but Marissa sends after her mercenaries.