On a fall night in 2003, Harvard undergrad and computer programming genius Mark Zuckerberg (Jesse Eisenberg) sits down at his computer and heatedly begins working on a new idea. In a fury of blogging and programming, what begin in his dorm room soon becomes a global social network and a revolution in communication. A mere six years and 500 million friends later, Mark Zuckerberg is the youngest billionaire in history... but for this entrepreneur, success leads to both personal and legal complications.