Final answer:
Doug Hansen and Andy Harris both tragically lost their lives during the 1996 Everest disaster when a storm hit during their descent.
Step-by-step explanation:
The ultimate fate of Doug Hansen and Andy Harris is that they both perished on Everest. This tragic outcome occurred during the infamous 1996 Everest disaster, which has been extensively documented and retold in various books and films. Alpinists Doug Hansen and Andy Harris were part of the expedition led by Rob Hall. Both men became casualties in what became one of the deadliest days in the mountain's history as a sudden storm engulfed the climbers during their descent from summiting the highest peak in the world.