Laura and Almanzo Wilder raise a family in Walnut Grove.
Sabrina goes under cover as a race driver when the investigation of a fatal crash uncovers plans for an upcoming $500,000 theft.
Jeannie gets nominated as the recording secretary of the officer's wives association.
Jaime sees a woman (Barbara Rush) resembling her dead mother, who Oscar admits was a Department of Defense agent.
Gidget takes over the school paper's advice column.