The International Rescue team is faced with one of its toughest challenges yet, as the revolutionary lighter-than-air craft Skyship One is hijacked while on her maiden voyage around the world. Against backdrops including the Statue of Liberty and the Sphinx, Lady Penelope, Parker, Alan and Tin-Tin fight the hijackers from on-board, while the rest of the team tries to stop the airship crashing.
| Actor | Role |
|---|---|
 Peter DyneleyJeff Tracy (voice) | Jeff Tracy (voice) |
 Sylvia AndersonLady Penelope Creighton-Ward (voice) | Lady Penelope Creighton-Ward (voice) |
 Shane RimmerScott Tracy (voice) | Scott Tracy (voice) |
 Jeremy WilkinVirgil Tracy / Hogarth (voice) | Virgil Tracy / Hogarth (voice) |
 Matt ZimmermanAlan Tracy / Carter (voice) | Alan Tracy / Carter (voice) |
 David GrahamGordon Tracy / Brains / Aloysius Parker (voice) | Gordon Tracy / Brains / Aloysius Parker (voice) |
| KKeith AlexanderJohn Tracy / Narrator (voice) | John Tracy / Narrator (voice) |
 Gary FilesBlack Phantom / Captain Foster (I) / Lane (voice) | Black Phantom / Captain Foster (I) / Lane (voice) |
 Christine FinnTin-Tin / Indian Fortune-Teller (voice) | Tin-Tin / Indian Fortune-Teller (voice) |
 John CarsonCaptain Foster (II) (voice) | Captain Foster (II) (voice) |
 Geoffrey KeenJames Glenn (voice) | James Glenn (voice) |