The story follows Adam Cartwright and his younger brother Little Joe as they embark on a journey to Virginia City during a fierce blizzard. Little Joe becomes increasingly ill during the journey, and Adam struggles to keep him warm and conscious. As they make their way through the blizzard, they become lost and stumble upon a cabin where they are taken hostage by a group of outlaws led by a man named Jack. Adam is determined to protect Little Joe and keep him safe, even as they are held captive. The story highlights the strength of the bond between the two brothers and the lengths that Adam will go to take care of Little Joe.