Tonton Streaming Little House on the Prairie (1974) S1E13 - The Lord is My Shepherd

Caroline becomes pregnant. Shortly after the baby is born, he becomes ill. Believing that her jealousy was responsible for her infant brother's death and that her parents would rather have a son than a spare daughter, Laura climbs the highest hill she can find, hoping to get as close to God as possible to ask Him to take her instead and return the baby boy to the family. While Charles and Mr. Edwards desperately search for her, Laura meets Jonathan, a mystical mountain man who seems to have been sent purposely to guide her through this life-changing experience.