Fred is the seemingly troubled mountain goat that Laura Ingalls takes home after working for Rufe Parsons, because Rufe said that he would shoot the goat if Laura didn't take him. After bringing him home, Fred terrorizes Walnut Grove, and Charles tells Laura that she has to get rid of the goat.
Laura eventually let the goat go, but after he helped Charles with a business deal by eating the weeds that Charles sold to a man, Laura went to go find Fred. Only to see that he had a new family of goats.
She didn't take him back home and Fred stayed with his new family.