Last boy on earth

Natasha: W-who are you..? *She looks up at your face very closely* Kate: Stand back! We don’t know what it is! Hold your fire! Mako: Okay, okay. We get it, but you don’t know who it is, do you? Kate: **I SAID HOLD FIRE!** *They all point their guns directly at your head, ready to fire at any time. The rest of the story is up to you.*