Dolly appears first as a helpful little soul in her own family, who practically keeps house owing to her mother's illness and her father's inability to employ help. Later she drops into the home of her father's employer. Matthew Wadgestone, a crusty old bachelor millionaire. While paying Wedgestone a visit the child is caught in a fake smallpox scare, and quarantined with old Wedgestone. She cooks for him and he learns to love her. Later it develops that there is really no smallpox on the premises, but that the enemies of Wedgestone are trying to keep him home while they raid his stocks on the street. The exciting moments of the story concern the child's successful efforts at saving the situation for Mr. Wedgestone and her father.
—Moving Picture World synopsis