Greenwood County's Mexican, Japanese, and Caucasian enclaves coexist in an uneasy truce on Colorado's High Plains, until Imperial Japan attacks Pearl Harbor. A sign appears in the barbershop window: "Japs Shaved Free-Not Responsible for Accidents-25 cents for a Jap Ear." Decades before talk of building a great wall on the southern border or registering Muslims, Greenwood was riven.
Art and Martha Lundgren, still grieving their baby's death, covertly maintain friendships with Japanese on nearby farms. Having lost hired hands to the service and struggling to meet food production goals, they turn to the Maruez family for help.
When construction begins on Camp Amache, an incarceration site for thousands of people of Japanese ancestry forcibly removed from the West Coast, Greenwood erupts in protest. Martha confronts violence against her Japanese neighbors and investigates the suspected confinement of former residents, decisions that threaten her family's reputation, and her life.