In the early 1900s, teenaged orphan Christine is sent to live with her tyrannical Uncle Russell and his two sons on their crumbling English estate, Flambards. Bitter rivalries and jealousies abound between arrogant, tradition-bound Mark and younger brother William, who's obsessed with the new-fangled airplane. Quarrels intensify as both young men fall in love with Christine and WWI begins, leading to sacrifice and tragedy. Based on the trilogy by K.M. Peyton.