Based on the Pulitzer Prize-winning novel of the same name by Cormac McCarthy. A father (Viggo Mortensen) and his young son (Kodi Smit-McPhee) struggle to survive as they travel through a barren landscape that's been ravaged by an unspecified cataclysm. There is no sun, and almost all plant and animal life has been killed off. The few remaining humans have been reduced to cannibalism, and no one is safe.