International Rescue must save the crew of a new super tanker when it sails into a patch of sea harbouring a fungus that reacts explosively with the vessel's cargo of liquid fuel.
| Actor | Role |
|---|---|
 Peter DyneleyJeff Tracy / Lord Worden (voice) | Jeff Tracy / Lord Worden (voice) |
 Shane RimmerScott Tracy (voice) | Scott Tracy (voice) |
 David HollidayVirgil Tracy (voice) | Virgil Tracy (voice) |
 Matt ZimmermanAlan Tracy / Lieutenant Jensen (voice) | Alan Tracy / Lieutenant Jensen (voice) |
 David GrahamGordon Tracy / Parker / Brains / Kyrano / No. 2, Ocean Pioneer II / Collins (voice) | Gordon Tracy / Parker / Brains / Kyrano / No. 2, Ocean Pioneer II / Collins (voice) |
 Ray BarrettJohn Tracy / Captain Johnson / Sir Arthur / TV Reporter / Pioneer Base, Port London (voice) | John Tracy / Captain Johnson / Sir Arthur / TV Reporter / Pioneer Base, Port London (voice) |
 Sylvia AndersonLady Penelope Creighton-Ward (voice) | Lady Penelope Creighton-Ward (voice) |
 Christine FinnTin-Tin Kyrano (voice) | Tin-Tin Kyrano (voice) |