After being reprimanded by International Rescue for sending them a false alert, two Australian boys are trapped by the Hood in a mine when he tries to steal secret photos from their father.
| Actor | Role |
|---|---|
 Shane RimmerScott Tracy (voice) | Scott Tracy (voice) |
 David HollidayVirgil Tracy (voice) | Virgil Tracy (voice) |
 Matt ZimmermanAlan Tracy / Lieutenant Lansfield (voice) | Alan Tracy / Lieutenant Lansfield (voice) |
 David GrahamGordon Tracy / Brains / Colonel Jameson / Sergeant (voice) | Gordon Tracy / Brains / Colonel Jameson / Sergeant (voice) |
 Ray BarrettJohn Tracy / The Hood / Williams (voice) | John Tracy / The Hood / Williams (voice) |
 Christine FinnTin-Tin Kyrano / Grandma Tracy / Tony Williams (voice) | Tin-Tin Kyrano / Grandma Tracy / Tony Williams (voice) |
 Sylvia AndersonBob Williams (voice) | Bob Williams (voice) |