Résumé: Riding peacefully along a western trail, Lucky Luke is suddenly ambushed by an unknown assailant. After a quick gunfight, the cowboy loses his mysterious attacker, but happens upon a lone wagon beset by Apache raiders. Another quick fight later, Luke is surprised to find that the occupants of the wagon are three lovely young women! Three sisters on their way to start a new life, and who all find the lonesome cowboy … quite interesting.