Geophysicist Dr. Josh Keyes discovers that an unknown force has caused the earth's inner core to stop rotating. With the planet's magnetic field rapidly deteriorating, our atmosphere literally starts to come apart at the seams with catastrophic consequences. To resolve the crisis, Keyes, along with a team of the world's most gifted scientists, travel into the earth's core. Their mission: detonate a device that will reactivate the core.

Aaron Eckhartas Dr. Josh Keyes
Hilary Swankas Maj. Rebecca Childs
Delroy Lindoas Dr. Ed 'Braz' Brazzleton
Stanley Tuccias Dr. Conrad Zimsky
Tchéky Karyoas Serge
DJ Quallsas Theodore Donald 'Rat' Finch
Richard Jenkinsas Gen. Thomas Purcell
Bruce Greenwoodas Cmdr. Robert Iverson
Christopher Shyeras Dave Perry
Ray Gallettias Paul
John Lindley