At the time of the conquest of the American West, tackles in 1878, the family Ingalls their belongings on a horse cart, in order to build on a river and Plum Creek in the small town of Walnut Grove, Minnesota, a block house and build a new existence. For the couple, Charles and Caroline Ingalls (Michael Landon and Karen Grassle) and their three daughters Mary (Melissa Sue Anderson), Laura (Melissa Gilbert) and Carrie (Lindsay and Sidney Greenbush) is the project to be more difficult than I thought. First of all, you have to fight for every square meter of your property, then you need to be annoyed again and again with the stereotypical neighbours around, as well as diseases and the destructive nature to withstand the forces.