When three-year-old Benji is plucked from the security of his home in Nagasaki to live with his American father, Lt. Benjamin Franklin Pinkerton, and stepmother, Kate, on their farm in Illinois, the family conceals Benji's true identity as a child born from a liaison between an officer and a geisha. But when the truth about Benji surfaces, it will splinter this family's fragile dynamic, sending repercussions spiraling through their close-knit rural community and sending Benji on the journey of a lifetime.