Alan returns to motor-racing to test out Brains' new engine, but a jealous rival steals his car before leaving him and Grandma stranded on an abandoned bridge with a motion-sensitive bomb.
| Actor | Role |
|---|---|
 Peter DyneleyJeff Tracy (voice) | Jeff Tracy (voice) |
 Shane RimmerScott Tracy (voice) | Scott Tracy (voice) |
 David HollidayVirgil Tracy / Timekeeper (voice) | Virgil Tracy / Timekeeper (voice) |
 David GrahamGordon Tracy / Brains / Victor Gomez (voice) | Gordon Tracy / Brains / Victor Gomez (voice) |
 Matt ZimmermanAlan Tracy / Billy Billoxi (voice) | Alan Tracy / Billy Billoxi (voice) |
 Christine FinnTin-Tin / Grandma (voice) | Tin-Tin / Grandma (voice) |
 Ray BarrettJohnny Gillespie / Kenny Malone / Parola Sands Announcer (voice) | Johnny Gillespie / Kenny Malone / Parola Sands Announcer (voice) |
 Sylvia AndersonParola Sands Page (voice) | Parola Sands Page (voice) |