After a catastrophe attributable to nature, the Earth’s floor was lined fully of ice. The survivors are pressured to dwell in underground bunkers, regardless of diminishing provides of meals and water. Briggs and Mason are the leaders of two such bunkers and hold making an attempt to maintain humanity. When the bunker Colony 5 now not receives any signal, a gaggle of courageous males, resolve to go on an expedition harmful, to search out out what occurred. Their affair by dreadful frost on the floor, will make them to know the reality concerning the thriller of the world they dwell.