Lorelei Collins possesses a soft heart for any animal in need, so when she finds a buffalo calf bawling beside its lifeless mother, she can't help but bring it home to raise on the ranch she and her sisters are building in the Rocky Mountain wilderness. Little does she realize that its white coloring is rare and considered sacred by Native Americans, which makes it highly valuable to them and European trappers alike. Men soon begin to visit their ranch to regard the marvel, with some trying to woo Lorelei into marriage and others trying to stealthe calf outright. When the men's advances become more sinister, Lorelei approaches Tanner Mason, the quiet and mysterious owner of the new trading post, with an idea: she and the calf will move to his post, along with her family's trusted Blackfoot friend. This will solve both their problems by bringing customers to his trade room and protecting her family from trouble. Yet as the danger travels with her, Lorelei and Tanner are faced with a threat greater than anything they're prepared for - one that will test the limits of their abilities and the love growing between them.