In Silicon Valley, profoundly deaf 12 year old Wayne Faulkner tries to call 911 when an intruder stuns his father in the back yard -- and 40,000 phones suddenly go dead. Wayne's father, Andy, can't figure out what happened, and he ought to see it at once: he's a telecom engineer, after all. But the terrorist Interrupt is clever, and Interrupt doesn't mind murder. Andy, soon a prime suspect, must identify Interrupt before the next killing -- for Interrupt...