Cheryl swaps the vet clinic for a day at a conservation centre, helping the team with some poorly, urban foxes. Cat performs surgery on old girl Sadie to give her a new lease of life. And Rory takes a closer look at a much loved guinea pig with a very sore eye.

The pressure is on for Cheryl to get golden oldie Tinka through some serious surgery and remove several worrying lumps. James treats a skink who's developed a sniffle. And Cat checks out Willow, the superhero lab who's on a mission to help a very special little boy.