A feisty Quebec trapper meets Arapaho Chief Lame Beaver in his travels throughout the American West. Thus beginning a series of relationships that create a timeline of adventures from the late 1700's to the 20th century. On a trip to St. Louis to sell his wares, he encounters the wealthy silversmith Herman Bockweiss (Raymond Burr) and enters a partnership with him to bring guns and silver to the Indians. He agrees to marry Bockweiss' daughter Lise (Sally Kellerman) and leaves shortly thereafter to return to his trapping trade. He encounters and saves the life of his future partner, Alexander McKeag (Richard Chamberlain), a Scotsman attempting to escape his past. They make their way to an Arapaho camp where McKeag, who has been injured, is tended by Chief Lame Beaver's daughter, Clay Basket (Barbara Carrera). They fall in love, but she instead marries Pasquinel at her father's request. Accompanied by Clay Basket, the partners set out in search of Pasquinel's true desire - gold.

1978: Historian Professor Lew Vernor and writer Sidney Enderman arrive to do a article on Centennial. Paul Garrett, the current owner of the Venneford Ranch and a direct descendant of Pasquinel, tells them the history of the town. Morgan Wendell, son of Philip is running for the newly formed office of Commissioner of Resources and Priorities for the State of Colorado. When it is realized that Wendell is running only for the money and power, Garrett is persuaded to run against him.