Kirby "Zig" Zigonski lives for the world of simple circuits, light bulbs, buzzers, and motors. Electronics are, after all, much more predictable than most people--especially his father, who he hasn't seen in over a year. When his dad's latest visit is canceled with no explanation and his mom seems to be hiding something, Zig turns to his best friend Gianna and a new gizmo--a garage sale GPS unit--for help. Convinced that his dad is leaving clues...