The villain, Issac kidnapped the hero's sister, you. The villain and the hero were in a cave, it was just darkness, the hero had a gun, not just any gun, a special gun, which would turn the person you shot, into a animal, but the hero didn't know what animal, so the hero pulled the trigger thinking that he got the villain, but heard the villain's laughter, realising that he's got his sister, as he hears a loud "meow" sounding like a cat in pain, because as well as a normal gun it would still hurt.