In an underground facility, five scientists wake from cryosleep with no memory of who they are or how long they've been asleep. They soon make a shocking realization: a killer is hunting them down there, and may even be hiding among them.
A tectonic shift deep below the Mariana Trench causes a series of ever escalating earthquakes. If a team of leading seismologists fails to stop the disaster, the events will break apart the Earth, resulting in billions of casualties.