The Snowed Out Roads - You're Locked in Here With Me

I love the setting. I'm a sucker personally for any kind of snowed in with nowhere to run kind of story. It's great for putting all these characters in the same place. It let us see something with Charlie. But I still need you to give me a non superhero explanation for how Charlie escapes death twice in this episode. What do we see in this episode, Rob? And then she gets stabbed in the chest with no like, Oh, good thing. Like no explanation as to why that didn't kill her.