An idealistic woman is kidnapped and forced to compete in an underground fight ring. Every night is a fight for her life as she plans to overthrow her captors and save the lives of many others doomed to the same endless cycle.

After taking a bullet to the head, Salander is under close supervision in a hospital and is set to face trial for attempted murder on her eventual release. With the help of journalist Mikael Blomkvist and his researchers at Millennium magazine, Salander must prove her innocence. In doing this she plays against powerful enemies and her own past.