Mad Jack, delirious with fever, imagines himself to be a bounty hunter on Grizzly's trail.
A stranger named Wright comes to the mountains to become the first man in history to fly.
Grizzly objects when a government agent tries to place a bounty on high-country wildlife.
Grizzly tries to stop a mountain survey by Ulysses S. Grant when it threatens wildlife.
Grizzly teaches a retired ship's captain and his pet chimp about friendship between man and beast.
Grizzly helps Mad Jack retrieve the burro he lost to an old adversary.
Grizzly demonstrates the meaning of freedom to an escaped slave.
Grizzly befriends a poor, starving man whom Mad Jack thinks is a leprechaun.
A retired cavalryman searches for the farmland he bought from a swindler with his life savings.
A dry spell leaves Grizzly and his companions facing drought and an approaching forest fire.
Grizzly tells a traveling entertainer that his ailing bear is suffering from its confinement.
Two incompetent silver-prospectors pollute the streams with mining chemicals.
Grizzly tries to stop a woman from killing the bear she thinks killed her father.
Nakoma and Grizzly seek a cougar that was once their pet and is now believed mad.
Two bumbling gold prospectors disrupt Grizzly's solitude.
Grizzly and Mad Jack search for a lost cub threatened by a trapper and a wolf pack.
Grizzly shows two runaway orphans how to survive in the wilderness.
An Indian chief who believes he lost his fish catch to Ben threatens to banish the bear from Grizzly's care.
Ben strays from the cabin and into a covered wagon belonging to an Indian witch-doctor.
Grizzly loses his memory after an injury and finds himself wandering alone in the wilderness.
Mad Jack shoots down a strange flying craft then learns his quarry is a famed French balloonist.
Grizzly risks everything to save a lost Indian girl from an evil spirit.
Grizzly's patience is stretched to the limit when he takes an ornery, injured stranger into his home.
Fearing flooding, Grizzly tries to persuade a beaver family to build a dam somewhere else.
An Indian sees a soldier riding a camel and believes the animal is a dangerous monster that should be killed.
Grizzly, fearing a gold rush, discourages Mad Jack from panning in a stream.
Young Theodore Roosevelt, in delicate health but eager for adventure, narrowly manages to escape death in the wilderness.
While Grizzly recuperates from an accident, Ben falls prey to an animal trainer who tries to starve him into submission.
Grizzly's struggle to save animals from a volcano nearly results in his capture by a pursuing detective.
A burro belonging to missing Mad Jack returns to camp alone, its saddlebag containing a diary that recounts how Jack met Grizzly.
A father learns to be kind after his unfriendly behavior nearly causes him to lose his son.
Grizzly comes upon a fugitive man searching desperately for a bag he lost.
Grizzly recalls how he met Nakoma, who became his blood brother.
Mad Jack hunts for the parents of a girl, now in Grizzly's care, who became separated from her family during a trek into the West.