In the future, computers rule the world. Net Force was formed to protect us from any and all criminal activity on-line. But there is a group of teenage whiz kids who sometimes know more about computers than their adult superiors. They are the Net Force Explorers. They go where no one else can go. And they fight crime like no one else in the world.After her equestrian teammate, Burt, disappears, Net Force Explorer Megan O'Malley finds him at a combined online-offline refuge for runaways. But Burt's next disappearance may be his last. Short of cash, he takes a job at a mysterious courier business — a service, Megan discovers all too late, from which many runaways are sent out, but few ever return.