The Campground Kids are ready to put their love for the outdoors to the ultimate test backcountry camping at Yellowstone National Park. Expecting a peaceful sightseeing adventure, the kids find themselves stranded in the park threatened by grizzlies and bison. To top this off, they meet a scientist conducting research whose equipment is mysteriously missing. Isaiah, Sadie, and Ethan are determined to help locate the equipment and discover who is sabotaging...