A fifth class was a worst year in life of Mark. On the lessons of physical education he was able to be never pulled up and all laughed at him, mathematics had seemed to him by too difficult, dinners in a dining-room awfully tasteless, and a school journey on a lake was spoiled, because he was not able to float. But most terrible in a fifth class - this Кенни Уильямсон, main hooligan considering itself king of school.Life of Mark changes, when to them with a mother on all summer his native uncle Jake - steep man of special troops and marine infantryman arrives. He helps Mark to become the real warrior, in fact it quite not so easily, as seems! To become a warrior, it is necessary much to work - every morning to practice, it is correct to feed, zealously to study and observe strict самодисциплину. Also Mark must learn to resist to the school hooligans and create the own code of warrior.Whether the ordinary will have time student of the fifth grade to become the real warrior to beginning of educational New Year?.