Westward III: Gold Rush

When gold is discovered in the Northern California wilderness, speculators flock west in hopes of striking it rich. Along the way the kind-hearted, but financially struggling Baron family (a farmer named Jake, his wife Emily, and their son Redd) welcomes three weary travelers into their home and offers them a place to rest. Grateful for their hospitality, the pioneers make a promise to repay the family for their kindness and generosity when they are settled. Unfortunately, a greedy land speculator named Silas McAllister plots to gain control of valuable land and eventually, governorship of California.

Source: Wikipedia, "Westward (series)", available under the CC-BY-SA License.