Twelve-year-old Dylan Fisher is a treasure hunter, and the creek behind his house has plenty of it. He hits the jackpot when he finds a geocache containing a cool crystal rock, and he meets the new girl next door. Both seem special, but both have a secret. When a corrupt eco-company steals the crystal and puts his new friend in danger, Dylan finds himself in the middle of a rescue mission. Through geocaching, he must solve encrypted codes, secure...