From the woods of Wisconsin and the plains of Kansas to Minnesota, the Ingalls fight to build and hold onto a new home, facing the danger of an untamed wilderness on the American frontier of the 1870's. A Christmas They Never Forgot - After a sudden, fierce snowstorm traps all the members of the Ingalls family inside the little house on Christmas Eve, they pass the time by exchanging stories about their favorite Christmases of the past.