Little House on the Prairie (1974)

Season 7: Episode 22

Reverend Alden eventually finds someone to take in the kids. However, this family just wants them to work. When Cassandra and James run away, their adoptive father doesn't even go to look for them. When Charles finds the kids, he tells them that he will adopt them if they could stand the house being more crowded. They happily agree to stay with the Ingalls.