Wyoming, 1870. 

For as long as they have lived on the frontier, the Bemis and Webber families have relied on each other. With no other settlers for miles, it is a matter of survival. But when Ernest Bemis finds his wife, Cora, in a compromising situation with their neighbour, he doesn't think of survival. In one impulsive moment, a man is dead, Ernest is off to prison, and the women left behind are divided by rage and remorse.

Losing her husband to Cora's indiscretion is another hardship for stoic Nettie Mae. But as a brutal Wyoming winter bears down, Cora and Nettie Mae have no choice but to come together as one family — to share the duties of working the land and raising their children. There's Nettie Mae's son, Clyde — no longer a boy, but not yet a man — who must navigate the road to adulthood without a father to guide him, and Cora's daughter, Beulah, who is as wild and untameable as her prairie home.

Bound by the uncommon threads in their lives and the challenges that lie ahead, Cora and Nettie Mae begin to forge an unexpected sisterhood. But when a love blossoms between Clyde and Beulah, bonds are once again tested, and these two resilient women must finally decide whether they can learn to trust each other — or else risk losing everything they hold dear.