Mysteries Decoded (2019) is a Documentary, Mystery series that follows u.S. Navy veteran turned private investigator Jennifer Marshall investigates some of America's greatest unsolved mysteries. Currently, you can watch Mysteries Decoded on Amazon Prime Video, Amazon Prime Video with Ads, Amazon Video. Streaming availability may vary by country and platform over time. It has a user rating of 7.5 out of 10 from 4 votes. Fans of documentary series may also want to explore similar titles below.