Merton and his team set out to find the saboteur behind a series of rigged accidents in the lead-up to the Aidensfield Hill Climb, an annual race for motor cars. Meanwhile, Liz Merrick grows concerned about a man sleeping rough who she suspects may be suffering from asbestos poisoning, and Vernon finds - then loses - a fortune.
| Name | Type | Role | |
|---|---|---|---|
| Duncan Gould | Writer | ||
| Noreen Kershaw | Director |