He is the last man on the planet. Not sure what happend to the planet or were he is, he is left alone. He has learned to live without people. He has learned to survive the wilderness. His two rules are simple. Gather supplies in the day, and get home and rest at night.  He can't do much at night, because sick, deformed creatures come out. He encounters giant mutated spiders, what seem to look like a green, fourlegged monsters, living skeletons and rotting dead zombies and tall, dark human like creatures. All are deadly to him.
However he has learned to live with these conditions. Hoping to find civilization or supplies underground, he digs. His excavations can go on for hours even days at a time, still facing the deadly paths that lay ahead of him. He has not been successful at finding any human form. The best he has found are earlier civilizations, such as buildings or farm land. Only some natural animals have survived such as pigs and cows. He feeds off of them and creates weapons and tools off of the land. He prays every night that things will get better, and that his long nightmare can be over. His journey still lays ahead of him and his fate, unknown.