前美国大兵雷蒙德·盖恩斯（道恩·强森 Dwayne Johnson 饰）在结束硝烟战火的生涯后，而今成为洛杉矶消防局的直升机救援人员。虽然工作中全力以赴，受人敬仰，值得信赖，这些却都无法挽回他失败的婚姻。某次短暂休假后，雷重返岗位，这时在内华达州南部发生了百年不遇的大地震，胡佛水坝在强震中被彻底摧毁。未过多久，又一轮强震从旧金山袭向了洛杉矶，雷在直升机上目睹了繁华城市转眼变成废墟的可怕一幕。
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Boyd Mitchler and his family must spend Christmas with his estranged family of misfits. Upon realizing that he left all his son's gifts at home, he hits the road with his dad in an attempt to make...