Disclaimer: based on the screenplay written by Victor Miller
Camp Crystal Lake, summer 1958:
One night, a girl was found in these camp grounds, running as fast as her legs could allow her. However, she couldn't move fast enough to get away from another girl, of about her age though likely a little older, who was slashing the air with her big knife trying to hit her. The girl, desperately trying to run away from the killing girl, didn't pay much attention to where she ran. Suddenly, she slipped and fell to the ground, but she was lucky to not have felt in the water, as she had ran that close to the lake. She tried to get her footing back, but as she turned, there stood the killing girl about to slash at her with her machete. Dodging the attack, the girl lost her balance again, but this time she did fall in the water, only narrowly missing to hit her back against a canoe which floated nearby. The killer chased her into the water swinging with her machete, but the victim found a paddle and blocked the blow of the machete with it, using it like a staff to ward off any blow. The machete, however, cut the paddle in half. The killer raised the machete for another blow, but the victim used the rowing half of the paddle to knock it out of the killer's hands. The machete flew out of her hand and landed in the water, after which the victim lunged for her knees and succeeded in throwing the killer into the water. The victim then got up, looking for the machete as fast as she could. Suddenly, the killer found her footing and stood up again. Screeching madly, she hoped to intimidate her victim, but the latter shot up holding the machete, and in one wild swing, she decapitated the killer, whose head flew off into the water. The body stood for a minute, then heavily fell into the lake. Breathing deeply, the nearly-victim girl dropped the machete, after which she dropped herself into the water. After having been through this, she decided she should relax a little. Her body's density, as well as her light-weightiness, allowed her to float upon the waters however, and the light breeze that blew that night caused her to float away from the dry land.
How long she lay floating on these waters, she did not know. One second almost felt like an eternity to her. That's how relaxing this was. It took but one sound to wake her from the trance she was in. The sound of a fish jumping out and back into the water. Having awoken, she stopped relaxing and decided to swim back to shore. When she started however, something was pulling on her leg. She tried to free her leg, it felt like there was something, or someone, holding on, even trying to pull her in. She tried to fight it. She tried kicking it, only so it would let go of her. It worked, so she continued swimming. Suddenly, something huge came out of the water, right behind her. She couldn't see what it was, but judging from the sound of it's splash, it was too big to be a fish. Panicking, the girl tried to swim faster, but it's arm wrapped itself around her head, making her not only blind to her surroundings, but also too heavy to keep her head above surface. She dove under the water, and despite all her efforts, the... thing that attacked her didn't back off. She couldn't see him clearly, but in the shadow of the moon, which shone on it's back, it looked so grotesque. The girl screamed, but her screams became bubbles under water. This caused her to waste all her breath to fight back, making it easier for her assailant to keep her under water, slowly killing her.