City Life moves fast, but so do the staff at Beech Hill Rescue Centre - if there's an animal in danger, they're first on the scene!
The vets at Beech Hill are treating a trainee guide dog. The beautiful black Labrador has grown clumsy and accident-prone and Carly's dad is concerned.
It looks as if the dog has a dangerous viral infection and, tragically, one of the side-effects is blindness.
The future looks grim. But is the vet's diagnosis correct? For once, Carly's not sure her dad's got it right . . .