September 1962. School is out, the weather is perfect, and Leo Stevenson just got a new washer and dryer. For young Mil Silver and his friends, this can only mean one thing: an exciting afternoon of box-carting! "Beneath him, Mil could feel the warm, squirming bodies of the other boys, their hot breath making the inside of the box even more stuffy and unpleasant.but before he could think of an excuse to bail out, he heard Sherry yell 'Bombs away!' .within seconds, the box was cart-wheeling down the hill like a shoe kicked down a flight of steps!" Imagine stuffing five boys in a cardboard carton and rolling it down the side of a mountain! Far-fetched as it sounds, this is only one example of the crazy things kids did in an era previous to video games, DVD's and MP3 players. Life was simple and children created their own fun. But things weren't always swell. When a race with his prized puries at stake goes dangerously wrong, Mil suddenly finds he has a lot more to worry about than just losing his marbles! Principal Bratton is furious and Mil's war with Belinda is about to get ugly!