The origins of the Justice League are explained as Detective John Jones and Batman try to discover what the 'Centre' is, Superman and Wonder Woman are soldiers for the United States Army, Flash is trying to live in a world were special agent King Faraday is hunting him and Hal Jordan has been selected to go with Task Force X to Mars.
2027未来世界,恐怖主义弥漫全球,科技发达,使人类神经系统可用人工磁片来取代。机器人为达到蚕食人类的大阴谋,先了绑架国际间各国领袖,继而派遣机器人复制繁殖以取代世界统治者的霸权。洛杉矶警界的杰出人物「雨水艾力」(奥利佛·顾纳饰)察觉这项阴谋,他寻求各种行动以阻止机器人的野心,而艾力身上却已被植入百分之十三人工器官……