
Tom Jennings, Dorothy's son, shows up in Loren's store one day when Mike and the kids are there shopping. He's a Civil War Veteran with an old war injury -- his leg was almost blown off. Dorothy asks Mike to treat him when he complains of pain in his seemingly healed leg. She gives him a syringe of morphine for the pain, not noticing his blissful expression. Mike invites he, Dorothy and Loren to dinner. During dinner, Colleen develops a crush on him. Sully's suspicion is piqued when Tom leaves and he forgets to use his cane. The next day, Tom returns to Mike, telling her his leg hurts. She treats him, but denies him her last vial of morphine, which she's saving for an emergency. Later that day, Loren catches Tom slipping a vial of patent medicine from the store under his coat. When Dorothy confronts Tom, he replies that the pain just got to him, and complains that Mike won't give him any morphine. Later that night, he goes out and tries to mooch free drinks at the saloon. Later still,
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.