Antoinette is in danger. After Red O'Neal delivers a beating to his half-brother Daniel for courting his sister Antoinette, she is sent to a convent until agreeing to marry an older, wealthier man. But after Antoinette manages to send a letter to her betrothed Lorenz MacDonald about the danger, he rescues her. Soon after, a neighboring ranch is attacked by Comanche raiders, and Antoinette and her mother-in-law are caught in a fight for life and death. Can their family survive the dangers of the violent Western frontier?