Undercover Billionaire (2019) is a Reality series that follows billionaire Glenn Stearns attempts a monumental challenge that most would claim is impossible. Follow this self-made mogul to see if he can build a million-dollar company in just 90 days. Currently, you can watch Undercover Billionaire on Disney Plus, Hulu, HBO Max, HBO Max Amazon Channel. Streaming availability may vary by country and platform over time. It has a user rating of 8.0 out of 10 from 41 votes. Fans of reality series may also want to explore similar titles below.