The Waltons plunge into the chaos and heroism of World War II. John-Boy reports from London for "Stars and Stripes," Mary Ellen nurses the war wounded, Jason, Ben and even Jim-Bob debate joining up, and John and Olivia expand their lumber business to aid in the war effort. But the personal events are almost as dramatic: still reeling from Grandpa's death, the family experiences the sorrow of losing another family member-- and the surprise of gaining a new Walton.