May 1910. As Halley's Comet hurtles toward Earth, panic grips the mountains of northeast Alabama. Experts predict the end of all life, and in Fort Payne, four townsfolk face their final days.Charlie McCracken continues his mail route up Sand Mountain, caring for an elderly Cherokee woman who escaped the Trail of Tears. His aunt Zona baptizes terrified townsfolk for a quarter each, preaching her improvised scripture. Sheriff Tyus Wetley struggles to hold his anxious town-- and his marriage-- together, while brothel madam Elva Shugart seeks redemption as the heavens prepare to fall.Over four harrowing days, their paths collide in unexpected and sometimes violent ways. Beneath a Fallen Sky is a sweeping, unforgettable portrait of fear, faith, and the resilience of hope when the world seems poised to end.