The Wilders are in for quite a time when Almanzo's brother Royal (Woody Eney) decides to take a vacation -- and deposits his troublesome sons, Myron (Ham Larsen) and Rupert (Rossie Harris), in the home of Almanzo (
Dean Butler) and Laura (
Melissa Gilbert). Before long, the nasty nephews have turned the household topsy-turvy with their practical jokes and pranks. It falls to Laura to put the kiddies in their place with some trickery of her own. ~ Hal Erickson, All Movie Guide