A mysterious trunk arrives at Grey House. Cassie explains that the trunk was found at the Art Institute of Chicago and the last return address attached to it was Grey House. Grace opens the trunk and finds a beautiful gown, a khaki suit, an aviation jacket and a pair of boots. Cassie suspects that these eccentric outfits belonged to Elizabeth Merriwick, who owned Grey House in the 1930’s.
The kids negotiate sharing their hot springs with the tourists, while Minnie and Joseph plan a barbecue community dinner. Rosemary discovers the truth about her mother.
When Little Jack falls ill, Elizabeth and Nathan care for him together as Hickam and Mei race to secure medicine. The kids broadcast a baseball game over the radio to lift spirits.