Veterinarian Daantje and the animal ambulance

It is busy at Daantje's father's veterinary clinic. Among all the sick and injured animals, the vet is looking for an assistant and there is an extension with new cages for animals that need to stay overnight. Daantje tries to get in her father's way as little as possible, but that is quite difficult when there is nothing to look for at all! Fortunately, there has recently been an animal ambulance in the region that works a lot with Daantje's father, and Daantje and her best friend Tofu are regularly allowed to travel with the nice driver Karel. For example, they rescue a hedgehog from a dire situation and remove an injured cat from a roof.
When that cat is then stolen from the animal clinic, Daantje, Tofu and Pluis immediately investigate. Will they find the perpetrator?