What's supposed to be a quiet weekend in the country turns into a crossroads adventure when Sammy and her friends meet Lucinda Huntley walking her 200-pound pig down the middle of the road. She tells them a true tale of the Wild West, a story of tough times, wagon trains, her great-grandma Moustache Mary, and a century-old family feud.

But this feud is hardly ancient history. Past and present collide — and combust! — when Mary's pioneer cabin burns to the ground. Sammy thinks the cause of the fire may be a hundred years old, but still, the gas can she finds near the scene of the crime is shiny and new...