Stephanie Dylar is disturbed when two shadowy figures claiming to be intelligence agents appear on her doorstep. The agents, Lovelace and Babbage, represent a government branch known as The Division, and inform her that her daughter Zoe may be involved in illegal computer activity. When Zoe subsequently goes missing, Stephanie turns to her friend Julia for help, and is confronted with the realities of constant surveillance when Julia brings the hacking group Incognito into the mix.