The story follows Gale as she has a brief affair with pool cleaner Adam, but quickly turns down his continued advances. Insulted at being rejected, Adam starts dating Gale's high school age daughter Becca, using her as an unsuspecting pawn in a twisted game of revenge.
A massive influx of glacial melting triggers a new ice age in the Northern Hemisphere, forcing a family to make their way across the ice-covered landscape before they are frozen out for good.
