In 1905, Scottish newcomer Flora Craigie jumps from a moving train to escape her abusive husband. Desperate to disappear, she claims a homestead near Alix, Alberta, determined to start a new life for herself. She finds that her nearest neighbours are also a Welsh widow with three children; two American women raising chickens; and a Métis woman who makes a living by breaking in wild horses. While battling the harsh environment (and draconian local attitudes toward female farmers), the five women grapple with the differences of their backgrounds and the secrets each struggles to keep. When their homes are threatened with expropriation by the hostile federal Minister of the Interior, the women join forces to “fire the heather,” a Scottish term meaning raising a ruckus. And as the competition for land along the new Canadian Pacific railway line heats up, Flora’s violent husband closes in, and an unscrupulous land agent threatens the lives and livelihoods of the women just as they’re coming into their own.