The series follows the adventures of the titular hero in the real world and in an alternate reality, referred to as The Outback. In the real world the Maxx is a vagrant, a "homeless man living in a box", while in the Outback he is the powerful protector of the Jungle Queen. The Jungle Queen exists in the real world as Julie Winters, a freelance social worker who often bails the Maxx out of jail. While the Maxx is aware of the Outback, Julie is not, though it is integral to both of their stories.