Something Hurt, Something Wild - S8-E1
Plot hole: Laurie Ferguson is outside the Ponderosa ranch with Joe Cartwright. In an attempt to frame him for sexually assaulting her, she begins screaming. She emits six loud piercing screams before the scene shifts to Ben, Hoss and her father and brother inside the home. It is not until her seventh scream that the four men look up and start to run outside.