In this episode whippet collie cross Marley is wreaking havoc in his owner Charlotte's home, so Leon helps Marley with a three-step plan to help. Gavin has 10-year-old shih-tzu Henry come in with his owner Janet; Henry's fur is making Janet's home smell bad so Gavin has to try to sniff out what is causing Henry's terrible stench. And Caroline meets a duck called Charlie who has become a bit of a diva.
