Last American Cowboy

A brutal winter threatens to end three Montana families' calving season before it even begins.

The families, consumed with bringing new calves into the world, get word of an impending blizzard.

Disease, hay shortage and financial hardship force the cowboys to make difficult choices.

An epic tradition comes alive when the cowboys drive their cattle to the open range.

The community helps the ranchers brand and vaccinate the cattle, but weather could ruin the day.

Fire in the Montana wilderness threatens one of the ranches and tragedy strikes a family.