In the twentieth film in the series, in 1950's Wyoming, middle-aged Indiana Jones and his friend Grey Cloud have obtained a sacred ceremonial pipe and end up in a snow-logged cabin. When Jones uncovers a soprano sax, he is reminded of his college days in 1920's Chicago, waiting tables at Colosimo's restaurant and becoming obsessed with Jazz music. When Colosimo was murdered, young Indy got caught up in the investigation together with his roommate Eliot Ness and young reporter Ernest Hemingway.
Unfortunately the movie The Adventures of Young Indiana Jones: Mystery of the Blues is not yet available on HBO Max.
| Directing | Carl Schultz | Director |
| Writing | Jule Selbo | Screenplay |
| Writing | George Lucas | Story |
| Production | George Lucas | Executive Producer |
| Production | Rick McCallum | Producer |
| Editing | Edgar Burcksen | Editor |
| Production | Jane Jenkins | Casting |
| Production | Roger Mussenden | Casting |
| Production | Janet Hirshenson | Casting |
| Art | Jeff Ginn | Production Design |
| Art | Barbara Kretschmer | Production Design |
| Art | Frank Richwood | Art Direction |
| Art | James Edward Ferrell Jr. | Set Decoration |
| Costume & Make-Up | Peggy Farrell | Costume Design |
| Costume & Make-Up | Rudolph Eavy III | Makeup Artist |
| Costume & Make-Up | Eva Ungrová-Malíková | Makeup Artist |
| Costume & Make-Up | Pat Hay | Makeup Artist |
| Production | Rick McCallum | Production Manager |
| Directing | Vic Armstrong | Second Unit Director |
| Directing | Ben Burtt | Second Unit Director |
| Crew | David Beavis | Special Effects |
| Camera | David Tattersall | Director of Photography |
| Sound | Joel McNeely | Original Music Composer |
