After being lost for almost a year in the wilderness - a story told in A Wild Canadian Adventure - Lester and Dora are back home in Troy, Montana. Nine months have gone by since their ordeal, it's the end of the school year and Dora wants some excitement. She finds it when her amulet starts vibrating, and she recalls that she was once warned that such a signal would mean the beginning of a great quest to rescue GeeGee and BeeBee, who had been stolen from their own land and taken to the surface world. Dora thinks the place to start searching is in an old cave above their school. Lester and Dora enter the cave's dark depths armed only with a crystal and the amulet. They soon discover that to succeed in their quest, they must outsmart a crazed criminal known as Old Man Jack, who follows them up to Copper Mountain and sets traps, trying to stop them in their tracks. Lester and Dora will need all their wits just to survive another series of magical adventures full of grizzly bears, dark places, and unexpected twists in The Search is On.