SuperGrid is set in a near future where mining conglomerates have turned Canada into a wasteland. Two brothers must travel the same road that claimed their sister's life in their quest to deliver mysterious cargo. En route they must contend with road pirates, rebel gangs, and each other.

在加拿大北部偏远地区的一个钻石矿倒塌后，冰路卡车司机（连姆·尼森饰）必须带领救援人员完成一项不可能的任务—穿越结冰的海面，营救被困矿工。除了融冰和风暴，还有难以预见的威胁在等着他们。