The Dark Forest is a mysterious camp to which a large group of children is sent every time and remains there until the next one arrives. And now the group is assembled, the camp is ready to accept recruits, among whom is a boy named Andrei. Upon arrival at the camp, he realizes that this is an unusual place in which terrible things are happening, and he will have to figure out everything that is happening in this place, uncover many secrets that the permanent inhabitants of this place are silent about.