After graduating from a fashionable finishing school and touring Europe with her father, Selina Peake returns to the United States, where her father is accidentally killed after losing his fortune in a gambling den. Selina is reduced to teaching in a high school in the Dutch community at High Prarie near Chicago. She boards in the farmhouse of Klass Poole, a dull-witted market gardener, and finally marries Pervus DeJong, a poor and backward farmer. She shares the drudgery of her husband's futile life and finds happiness only in their small son, Dirk, whom she calls "So-Big."
| Actor | Role |
|---|---|
 Colleen MooreSelina Peake | Selina Peake |
 Joseph De GrasseSimeon Peake | Simeon Peake |
 John BowersPervus DeJong | Pervus DeJong |
 Ben LyonDirk DeJong | Dirk DeJong |
 Wallace BeeryKlaus Poole | Klaus Poole |
 Gladys BrockwellMaartje Poole | Maartje Poole |
 Jean HersholtAug Hempel | Aug Hempel |
 Charlotte MerriamJulie Hempel | Julie Hempel |
 Dot FarleyWidow Paarlenburg | Widow Paarlenburg |
 Ford SterlingJacob Hoogenduck | Jacob Hoogenduck |
 Frankie DarroDirk DeJong (child) | Dirk DeJong (child) |
 Henry HebertWilliam Storm (as Henry Herbert) | William Storm (as Henry Herbert) |
| DDorothy BrockDirk DeJong (infant) | Dirk DeJong (infant) |
 Rosemary ThebyPaula Storm | Paula Storm |
 Phyllis HaverDallas O'Meara | Dallas O'Meara |