Settlers start moving into the mountains and Grizzly Adams (Dan Haggerty) attempts to be neighborly, offering whatever help they might need. A man named Cartman (Ronny Cox), and his son, Robbie (John Bishop), set up a camp in the valley. But Cartman stubbornly refuses Adams' hospitality, insisting that he can take care of himself. Robbie, however, is fascinated by the mountain man Adams, and especially interested in Ben, the giant grizzly bear.
Ignoring Adams' friendship and advice, Cartman builds a lean-to downwind of his campfire and gets smoked out. Then, while chopping wood without caution, he cracks open a hornets nest, endangering both he and his son.