"Long before the internet, there was the 'Network.' In the 1970s, a group of blind teenagers and tech obsessives discovered that the global telephone system wasn't a fortress—it was a musical instrument. By playing a single 2600-hertz tone, they could command the world’s satellites and talk to anyone, anywhere, for free. Today, we go inside the 'Shadow File' of the Phone Phreaks. From the legendary 'Captain Crunch' to the secret garage where Steve Jobs and Steve Wozniak built their first business, we explore the analog hackers who proved that the signal belongs to those who know its frequency."