擅长柔道的桑希洛（日文原名：红三四郎）带着一个小男孩，骑着红色摩托车行走于世界各地，追寻独眼的杀父仇人。每一集到达一个地方，每次战斗均身穿红色格斗服。
Teenager Gô Mifune aspires to be the world's best race-car champion with the help of his friends, family and moxia.cc his father's high-tech race-car, the Mach 5.