Mitch Vogel, who previously co-starred with Michael Landon in Bonanza, joins the cast as Johnny Johnson, the shy new schoolmate of Laura Ingalls (Melissa Gilbert). Developing a crush on the much-older Johnny, Laura does everything she can to capture his attention. Imagine her dismay when Johnny expresses a preference for a girl closer to his own age: Laura's sister Mary (Melissa Sue Anderson) ~ Hal Erickson, All Movie Guide