Mara Turing receives a mysterious message when she's about to start her summer vacation in New York: "I need your help." This enigmatic call is from her uncle, a member of the dangerous "Dirtee Loopers," hackers. He had disappeared without trace when she was five years old, leaving a great hole in her childhood life. During the journey to find her uncle, Arnold Turing, Mara and her friends learn programming in a garage in Queens, NY, come to see the world through critical eyes and confront the diabolical duo formed by Hermes, a very advanced artificial intelligence, and Falko McKinnon, the most dangerous hacker of the story who is imprisoned in The Hidden Mountain.