Cat is given the run-a-round by a herd of grumpy alpacas at a local animal park, James finds the root of Diego the chihuahua's painful tooth problem, and Cheryl's happy to get a visit from one of her favourite patients, Jabba the pug - but he's not quite as happy to see her!

Cat goes on a hunt for a mystery object stuck in Bonnie the greedy labrador's mouth, Rory performs a risky operation to remove a huge growth from Chas the chihuahua and James gets to grips with a feisty old feline called Fifi.