It's the end of August. Summer's almost over, and the carefree time of a young boy's summer vacation is rapidly and inexorably slipping away from him. When his first day of junior high school looming ever closer, thirteen-year-old Jackie Stone and his best friend, Chris Hooper, want to make the most of their freedom. They have one last Saturday night to camp out in the tent in Jackie's backyard . . .one last night to goof off in ways only two thirteen-year-old boys can.

But as much as Jackie wants to go along with his friend's idea of what would be "fun," he is filled with unaccountable apprehension. He senses that something is wrong . . . He has a uncanny feeling this may be the last night—ever—that he and Chris will fool around like this.