The hidden valley mystery

When his friend Gunnar discovers a $100 bill in a hidden valley just north of Toronto's Don Valley Golf Course, Mike Steriou thinks his dream can come true: owning a genuine Explorer sleeping bag for the autumn Scout camp near Alliston, Ontario. However, a near-tragic accident for pal Tuan, unpleasant new neighbours across the street, two vicious dogs, a break-in at his uncle's Danforth printing shop, and other exciting events gradually piece the high-tech puzzle together, until Mike and his buddies daringly bring three criminals to justice.