超级太阳风暴导致的地震及火山喷发，引起了科学家梅雷迪思的关注。她对此十分担忧，并确信近期不断发生的地壳活动，是毁灭性灾难来临前的预兆。情况危急，得不到同事认可的梅雷迪思决心将情况上报给市政府，希望政府重视并对全人类做出警示。然而灾难的到来比梅雷迪思预料的更快，正当她到达市政厅，表明来意欲面见市长之际，海啸、地震、火山喷发等活动正在全球同时爆发，交通瘫痪，通讯中断，城市顷刻间变为人间地狱……...

A father and his two teenage sons travel to a small mountain cabin for a male bonding adventure. When a lost tourist arrives at the cabin, their male-bonding outing turns into a struggle for survival....

A socially and politically frustrated young man with a troubled past vents his frustrations through a social networking website and unwittingly sparks a revolutionary social movement....