在这部童梦动画/运动片中,《童夢》是勵志式的卡通片，主題圍繞打捧球。跟許多同類卡通片一樣，主角不斷遇到新對手，跌倒了又爬起來。就是這樣的一個成長故事。
簡單來說，就是有一個叫新城童夢的小孩，爸爸是著名捧球手，在投下九九八十一個好球後英年早逝，童夢後來發現自己投球的天份，創出會消失的“童夢幻影球”因此穿起“1/2”戰衣上場，投出令所有人震驚的魔球。魔球种类有：
1. 童夢幻影球
2. 彩虹閃耀魔球
3. 超級彩虹閃耀魔球
4. 破風真空魔球
5. 高旋轉黑洞魔球
A boy named Dome (Giants Stadium) inherited from his father the love for baseball and his great sense for the sport, his father, a professional player, before dying, had time to teach him a magical shot. Dome, makes that shot in a training session of the Giants, his father former team and is contracted immediately. With the support of the veteran players and his friends, none of the main batters of the Japanese professional league manages to end with his magical shot. Then the rivals appear and Dome must find is answers and battle his way in professional baseball.
