小学游泳俊昊永远是在比赛中第四，无论他如何努力。他的母亲寻找了一个教练谁可以给他私人的经验教训，并希望前游泳冠军Gwangsu需要他。 Gwangsu的极端训练方法明显的改善俊昊的结果。

　　Elementary school swimmer Junho always comes fourth in competitions, no matter how hard he tries. His mother seeks out a coach who can give him private lessons, and former hopeful champion swimmer Gwangsu takes him on. Gwangsu's extreme training methods noticeably improve Junho's results.