Old Jack's family lives in Detroit, Michigan, USA. Due to his age, he has lost his ability to work and his monthly aid can only support the family's food and drink. Therefore, he chose to move the house into the sewer.
Johnson was forced to move into the sewer due to being infected with drugs. In an interview with him, he said that although he had lost everything, his wife did not leave him, which was also the driving force for his survival. He deeply detested the drug dealers that were everywhere in the United States.