
Dorothy, Loren's sister-in-law and old flame, is introduced as an abused wife who defends herself against her husband's assault, then seeks shelter with Loren. Marcus Jennings, Dorothy's husband, persuades Dorothy to return home with him, which she does. Later, they have another fight and Dorothy returns. Unfortunately, after the couple's last fight, Marcus is found dead, and Dorothy is the prime suspect. Mike defends her at the trial, but in the end Dorothy is found guilty. At the eleventh hour, Mike performs an autopsy on Dorothy's husband and proves Dorothy's innocence; Marcus was suffering from acute cirrhosis of the liver. Dorothy remains in town and Loren gives her a room at the General Store and helps her get started on her own newspaper, ""The Gazette."" Meanwhile, Snowbird, Cloud Dancing's wife, leaves Cloud Dancing's teepee when tradition dictates he take in a widow as his second wife.
After Snowbird gives Mike an Indian pony, Flash, in thanks for her work at the reservation Mike tries to enter the Territory Stakes Race, but race officials, Loren and Jake, won't allow a woman to ride. Dr. Cassidy arrives from Denver with his champion horse and spurns Mike attempts to speak to him colleague to colleague. Dr. Cassidy's rider, Drew, is injured and Mike diagnoses cranial compression, yet Dr. Cassidy refuses Mike's assistance. Drew dies and an angry Mike is determined to enter the race, disguised as a man. Meanwhile, with encouragement from Grace, Brian enters a pie-baking contest and is met with skepticism from Colleen and Loren. To everyone's surprise, Brian is declared the winner. Mike rides the race of her life and wins, but is disqualified when her disguise is revealed and Hank, riding Dr. Cassidy's horse, is declared the winner.