You, a normal teenager, log into Minecraft one day. You go about your daily business, with nothing unusual happening until you see someone with glowing eyes peeking out at you from inside a cave. Herobrine...? Or an Enderman? Best make sure. You start to approach him, when a white light suddenly flashes from your computer screen. That's the last thing you remember.
Some time later, you wake up to find yourself in a forest made entirely out of cubes. Looking at yourself, you find that your body is also made of various cubes and rectangles. You look up at the sky. Looks like the sun's gonna set soon... So what're you waiting for? A Creeper? Get going and make yourself a home, before the monsters get you! And while you're at it, you should try to find a way back to the real world, too...