Quando os San Francisco Giants pagam ao defensor central, Bobby Rayburn, US $ 40 milhões para liderar seu time na World Series, ninguém fica mais feliz ou apoiador do que o fã número 1, Gil Renard. Quando Rayburn fica atolado na pior crise de sua carreira, o obcecado Renard decide não parar por nada para ajudar seu ídolo a recuperar sua antiga glória - nem mesmo o assassinato.
Depois de 19 anos jogando o jogo que ele amou a vida inteira, o arremessador do Detroit Tigers, Billy Chapel, tem que decidir se vai arriscar tudo e colocar tudo para fora.
Ren Mihashi was the ace of his middle school's baseball team, but due to his poor pitching, they could never win. Constant losses eventually lead to his teammates bullying him and reached the point where his teammates no longer tried to win, causing Mihashi to graduate with little self-esteem. As a result, Mihashi decides to go to a high school in a different prefecture where he has no intention of playing baseball. Unfortunately, upon his arrival at Nishiura High, he is dragged into joining their new team as the starting pitcher. Although unwilling at first, Mihashi realizes that this is a place where he will be accepted for who he is; with help from the catcher Takaya Abe, he starts to have more confidence in his own abilities. Abe, seeing the potential in Mihashi, makes it a goal to help him become a pitcher worthy of being called an ace.
Years after he turned his back on his hometown, a burned-out major league ballplayer returns to teach phys ed at his old middle school.
