In Chicago, on the verge of technological advancement and the widespread globalization of the CtOS network, a vigilante seeks to find those responsible for the death of his niece. The network, designed to unite and protect people in the digital world, has its downside, a gap, vulnerabilities in the system, with the help of which Aiden Pearce, a vigilante and professional hacker, makes his way along the thread of events and hidden deeds of the top of the criminal world of Chicago, unraveling the digital web.