Promise, Texas, is a good place to live, to raise a family, and to spend the rest of your days with the person you love. Cal Peterson and his wife, Jane, also known as Dr. Texas, certainly feel that way. The last thing they expect to encounter is a threat to their marriage. But in September, disagreements begin to escalate with the help of a young woman who has her eye on Cal. Following months of emotional upheaval, the couple separate, and Jane returns to her childhood home in California with her children. Now alone on the ranch they built together, Cal is forced to confront what he really wants in life. And Jane is confronting the same question in California. How serious were they about their marriage vows; How important is Promise to Jane; Is there hope for reconciliation?