The story follows an eclectic group of ordinary people in an extraordinary situation: a collision is imminent with an eight-mile wide comet that’s destined to wipe out all life on Earth. The cast of characters is made up of a British bank manager, an Italian nun, a female death-row inmate, a Five-star U.S. General, a White House civil servant, and a bride with a one-eyed husband 30 years her junior. Together, they hunker beneath the town of Slough, about 20 miles west of…