Sam lived a perfectly normal and average life until 2013 when he decided to leave his home and begin backpacking across the world. His dead end job and the constant feeling that he was living his life only to pay bills and grow old finally got to him. Without saying a word to anyone he packed up some essential belongings, withdrew all of his cash from the bank and went off the grid. No mobile phone and no internet. Just himself and the open road. No specific destination in mind. He tried to keep away from civilization as much as possible, only entering towns and cities for food and a place to spend the night. Occasionally working a job for a day or two before moving on with cash in hand. He kept up this lifestyle for years, eventually becoming extremely introverted and preferring to keep away from people altogether, sometimes never seeing another soul for months at a time. He would live off the land, eat only what he could scavenge or hunt and sleep under whatever shelter he could craft for himself and return to towns only to sell skins and pelts for ammo and medicine.
After four months of hoarding pelts and skins, Sam decided to try and find a town in which he could sell his goods and resupply his ammo and medicine stockpiles. However, the town in which he found himself was abandoned and in ruins. Every house had been broken into and completely looted, all of the stores were locked up tight or suffered the same fate as the houses, walls and windows were painted red with what appeared to be blood. Sam had no clue what had happened. He walked down the road to another nearby town named Zelenogorsk and before he could get within 100 feet of its perimeter, multiple armed men made themselves known and demanded that Sam dropped his weapon and surrendered to an infection test. Sam was obviously confused but he surrendered and listened to the men with the guns. After confirming he was clean, they escorted Sam into the town where they told him that six months ago, in July 2017, an infection broke out and turned its victims into mindless killing machines. Sam was confused at first, but quickly understood the situation when he was rushed to the border of the town to fend off some inbound infected.
It is now the present day and Sam has become a courier for the settlement that aided him in the beginning. He loads up on supplies and takes them to nearby settlements in an effort to reconnect our decaying world. He tries to avoid other survivors on the road as he knows what they are capable. He tries to only interact with the settlers at his destinations. This is how Sam lives his life in the current world. Travelling wherever he is needed in order to try bring everyone back together again.