Starting over isn't easy, especially for John Nolan who, after a life-altering incident, is pursuing his dream of joining the LAPD. As their oldest rookie, he's met with skepticism from those who see him as just a walking midlife crisis.

Jack Hall, paleoclimatologist, must make a daring trek from Washington, D.C. to New York City to reach his son, trapped in the cross-hairs of a sudden international storm which plunges the planet into a new Ice Age.