Nick grew up in Chicago, Illinois, USA to Matt and Erin Greenway. His parents weren't actually married, and he was conceived from a one night stand. Because of this, it seemed neither parent was up to the task of raising him. They'd both rather forget him and each other, and move on. So, when he was born, his mother left him in the care of her aunt who lived in a poor section of Chicago. As Nick grew up, he was brought into the fold of the Four Corner Hustlers. They basically raised him and taught him everything he knew. They taught him how to grow weed, and he became their number one grower of the plant. He spent so much time around the plant, smoking it, growing it, that he believed growing the perfect plant was an art form, and that cannabis wasn't just a simple product, but that it was medicine.
He loved his adoptive family so much that even decided to follow them to some back woods slavic country called Chernarus. He would end up stuck there with his family when the infection ravaged the country and sent it into chaos.