Dusty discovers a treasure map, and his friends try to swindle him. Dusty gets sprayed by a skunk when he's playing dead when a bear comes around. Causing everyone to mistakenly believe he's dead.
While out scouting, Dusty sees an Indian boy being attacked by a bear, and ends up rescuing the boy. But it turns out the boy is the son of a Chief, and Dusty is leading the angry tribe right to the wagon train.
Dusty removes a thorn from a bear's paw and the bear follows him back to camp to everyone's consternation. Complicating things is a similar bear who attacks anyone in its way and hunters who want the bears eliminated, whether good or bad.
Brookhaven claims a ghost town for his own, but a series of near accidents leads to a man who already has a claim on the town. Little does the group know that the military is using the town as a test site for a new formulation of gunpowder, and will soon blow it up.
Dusty meets a wounded soldier who locks a courier pouch on his arm with instructions to guard it with his life, deliver it to Fort Hale, and keep it out of the hands of an outlaw named Bates.
Dusty's raven steals their map, and they are expecting a tornado. Dusty tries to get it back, and discovers a cave just as it hits. They survive, along with their covered wagon and stagecoach.
Encountering a pregnant Indian woman, Callahan tries using smoke signals to contact her husband, but he's a member of an enemy tribe, and the smoke signals bring her angry father.
Dusty and Callahan rescue a pretty girl they find alone on the road who tells them she was driven out of a nearby town because they believe her to be a witch. When accidents and eerie events happen in camp, Dusty's friends begin to wonder if the townspeople weren't right.
Dusty and Callahan are arrested when an officer accuses them of stealing a payroll he was transporting. The rest of the crew works to free them and find the real culprits.
Dusty may have been a bumbling idiot when he left the campsite, but he returns abounding with confidence. It's all due to the miraculous - and fatal - berries he ate.