The adventures of a one-armed gunfighter (he lost the use of an arm during the Civil War) in the Old West.

Nat Cutler, known as Hawkeye, is a fur trader. With his faithful Indian companion Chingachgook, the last of the Mohican tribe, he fights to protect settlers against the raiding Huron Indians.

When the ancient continent of Mu sank beneath the ocean, some of its inhabitant survived in caverns beneath the sea. Cowboy singer Gene Autry stumbles upon the civilization, now buried beneath his own Radio Ranch. The Muranians have developed technology and weaponry such as television and ray guns. Their rich supply of radium draws unscrupulous speculators from the surface. The peaceful civilization of the Muranians is corrupted by the greed from above, and it becomes Autry's task to prevent all-out war, ideally without disrupting his regular radio show.

The Cisco Kid and his English-mangling sidekick Pancho travel the old west in the grand tradition of the Lone Ranger, righting wrongs and fighting injustice wherever they find it.

The exploits of Champion, a wild stallion who befriends twelve year-old Ricky North in the American Southwest in the 1880's. Although Ricky, who lived on his Uncle Sandy's ranch, had a magnetic attraction for trouble, he was always rescued by the Wonder Horse, aided by the boy's other bosom companion, German shepherd dog, Rebel.