25 guys and girls(around 10-20 years old. 50 in total) are trapped in a maze. No one knows why they are there. There is no exit. There are clues to escape all over the maze. The clues tells the people that, "5 males and 5 females can only survive and escape." There are food and water in the large empty fields in the maze(only 4 places like this). Some people have weapons. In the night, beasts attack people, but not in the fields. A helicopter will arrive for the last 5 male and 5 female.