chunk: Flynn's ex-girlfriend Lora Baines and fellow ENCOM engineer Alan Bradley warn Flynn that Dillinger knows about his hacking attempts and has tightened security. Flynn persuades them to sneak him inside ENCOM where he forges a higher security clearance for Alan's recently developed security program called "Tron". In response, the MCP uses an experimental laser to digitize and download Flynn into the ENCOM mainframe cyberspace called the Grid, where programs are living entities appearing in the likeness of the human "users" who created them.