A group of kids is playing on some monkey bars in a playground. Just for fun, they imagine a terrible monster is living in the sandbox below them. One kid falls to the ground and suddenly a monster comes out of the sand and viciously mauls him. The kids are stuck on the monkey bars and try to wait it out, but one by one they get eaten by the monster. One kid falls onto the sand and gets slashed across the face by the monster. The last two kids manage to escape and run away. When they think they are safe, one of them says, "Good thing we didn't imagine it had legs..." All of a sudden, the creature comes crawling up out of the sand and chases after them...
