Little House on the Prairie S01 E05 The Love of Johnny Johnson

"Together, a pioneering family faces a crucial test of its courage and its love!"

Laura falls in love with a new student, Johnny Johnson. Johnny, who is a lot older than Laura, is interested in Mary instead. Although Mary is not interested in Johnny, Laura's actions cause tension between the sisters. When Charles finds this out, he is appalled that either of his girls is involved with Johnny.