Gary was mauled by what his wife thought was a bear one night while he was with his wife, Rebecca Hampton, and his daughter, Chloe Hampton, at Willow Creek Camping Ground in Montana. One month later he awoke from a coma he had been in because of the attack. That night after he had gone back to sleep he transformed into a werewolf and rampaged through town and even went as far as killing a man. The next morning Gary found all his injuries had been healed. A month later while he was at home he transformed into the creature again during the night and killed a rabbit. When he awoke the next morning he found his clothing torn to shreds so he checked the security cameras only to discover what he had become.
He was then confronted by a vampire named Zechariah who offered to help him control his newly discovered powers. In a matter of three weeks he had nearly full control of his beastly form. He also discovered he no longer needed to sleep because of the lunar energy he absorbs during the night. The next day he debuted during a fire and was dubbed the Wolf-Man by the media.