It's the year 2045 and global warming has turned the world into a fireball. Nothing can survive outside and the last humans are confined to the underground. Recently, scientists have discovered the temperature has been rising at a much faster rate and in one month, the shields that protect the underground oxygen supply will be destroyed. All life will be exterminated! Follow Melissa Mercer, James Wilson, and the President of the New America as they try to save the human race from extinction.