The devastating impact of global climate anomalies on human civilization and social life is described. Meteorologist Jack Hall (played by Dennis Quaid) and his partner, after years of research, predicted that the greenhouse effect, melting glaciers, seawater desalination and ocean current changes might cause the disorder of the climate system at some time in the future, and made a report at a scientific seminar and put forward long-term suggestions, but the US Vice President ignored his warning on the grounds of economic development.
However, drastic changes in the climate have already begun. Marine meteorologists who also participated in the seminar returned to the high-latitude monitoring station in Britain after the meeting and found that marine monitors in Georgia, Greenland and other sea areas issued warnings of rapid cooling of seawater. Due to the limitation of conditions, the monitoring station could not analyze and calculate the mountain of data, so he sought help from Dr. Hall and his meteorological bureau who had returned to Washington, USA.
New york began to cool down seriously, and a few people who stayed in the library survived by burning books. Hall and his team drove to journey to the south to rescue Sam and others. After a long journey and painful sacrifice, they finally found survivors in the vast and cold city of new york after the snowstorm. Soon after, the government plane came to reinforce, and mankind ushered in a new period after the drastic changes.