A French visitor to Scotland smuggles her cat into the country, sparking a terrifying outbreak of rabies which threatens to engulf an entire community.
When a rabid cat is smuggled in to Britain, the spread of the disease goes unnoticed. That is until the first human falls victim to the terrible Mad Death.
Hillard moves to contain the outbreak inside the quarantine zone, while Anne searches for the source of the virus. Then another case is reported - outside the quarantine.
