Bob, a guardian from the Super Computer, helped by his friends Dot, Enzo, and dog Frisket, defend the digital city of Mainframe from evil computer viruses that seek to dominate the city and infect the entire net.
Frisket swallows an unformat command Megabyte had just uncovered. Wanting to get it back, the virus has Enzo kidnapped, using him as bait to lure the dog into Silicon Tor.
Mainframe is attacked by dastardly software pirates, who quickly scavenge the city, taking everything of worth - including Bob!
After Bob upstages him during a game, Enzo decides to get smarter in a hurry. The Read-Only Room at the Principle Office is too much like work for the young sprite, so he's tempted into tinkering with the system clock. Only instead of making himself twice as smart as everyone else in Mainframe, he accidentally makes everyone else half as smart! What's worse, he ends up trapped in a game cube with a bunch of his dumbed-down friends. Can Enzo best the user by himself and fix this mess?
Mike the TV is driving everybody insane, but when a game cube drops and Mike reboots into a warrior they're going to need him to help stop the user.
With the help of Mouse, a hired mercenary, Megabyte intends to send a heavily compressed ship into Bob's head to take control of his brain. However, things don't go exactly as planned.
Dot is arranging a celebration for Enzo's first birthday, and Bob has to keep the young sprite occupied until everything is ready.