An elderly English doctor and his 14-year old American nephew go on a perilous journey to Africa in an hot air balloon with an African guide, to retrieve a precious diamond from the top of a volcanic rock, as a gift for Queen Victoria.
| Directing | Chris Cuddington | Director |
| Writing | Jules Verne | Scenario Writer |
| Writing | Kimmer Ringwald | Writer |
| Production | Neil Balnaves | Executive Producer |
| Production | Doug Paterson | Production Manager |
| Editing | William M. Anderson | Editor |
| Editing | Peter Jennings | Editor |