When the old man who is covered in dirt walks into the country honky-tonk and says "The Falling," right before dropping dead, Bill Travis has to penetrate the gathering dark cloak of secrecy surrounding his death and get to the truth before a team of nuclear regulators can rake the entire incident under the carpet. Bill, with his former partner, Hank Sterling, who has now been "recalled to life," must make a mad dash across the desolate West Texas landscape to save the life of Moe Keithley, a Harley-riding bankruptcy lawyer who is in over his head and may very well be the most radioactive man in the Northern Hemisphere.