On the morning of the 2012 Winter Solstice, an undetected celestial body crashes to Earth. The shock is so violent that the Earth tilts a quarter turn on its axis, moving the North Pole to the Equator.

A small village in Yakutia (Siberia) wakes up under a burning and still sun, fixed forever at the zenith, while in the Southern Hemisphere plunged in permanent darkness, Anton Sakhalin and his Mayan companions flee a frozen Mexico, in search of light. After 7 years of aimless wandering across a devastated world, the two communities meet at the bottom of the Bering Strait, now dry.