Martha Nix

Pregnant Mary wants Adam and his wealthy Bostonian father to mend their relationship through reconciliation.

The children of Walnut Grove idolise an ageing daredevil and endanger themselves by attempting his stunts.

Olivia's cousin Rose arrives for a visit, bringing her two grandchildren-and problems-with her. Ike and Jim Bob build a huge air raid siren.

Mary Ellen substitutes as the county nurse; John searches for his diploma to prove to the Army that he graduated from high school.

Jim-Bob helps a newcomer, the wife of an Air Corps pilot, refurbish an old cabin and finds himself falling hopelessly in love.

While John-Boy lies in a coma, Olivia accepts a job as a Red Cross volunteer, never losing faith or patience for a sign of his recovery. Rose plans a big Thanksgiving feast.