0
57 min
David and Monty are two friends of Susan and Betty Potter whose father runs a fleet of lorries. One by one, his lorries are involved in accidents and sabotage is suspected. The children are determined to find the culprits.
| Name | Character | Team | |
|---|---|---|---|
| Douglas Barr | Unowned | ||
| Ivor Bowyer | Unowned | ||
| Angela Glynne | Unowned | ||
| Angela Fouldes | Unowned | ||
| David Hannaford | Unowned | ||
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John Longden | Unowned | |
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Carole Ann Ford | Unowned | |
| Howard Lang | Senior Police Officer (uncredited) | Unowned |