Go West Young Man...

George Alwood III, is a spoiled and rich young man who heads west to
become a mountain man in 1825. Taken under wing by two experienced
old mountain men, George Alwood the third becomes Bear Killer the
mountain man. After a short visit with Shoshoni Indians, Bear Killer finds
himself with an unwanted wife and though he resist's, he eventually
learns to love her. A cold and hard winter in the mountains brings him
closer to his bride, as he learns to live as a mountain man, and just
before spring she informs him a child will soon come. Content now, with a
canvas shelter, campfire, dried meat, and soon to be family, Bear Killer
reflects on his rich and pampered background.

After his wife and unborn child are killed by white men, the young mountain
man makes a promise to avenge their deaths and he's swept up into a deep
sense of rage. He finds, however, the men he is searching for are hard men to pin down and
even harder to kill.