This week, the team pick up fat cat Tiger, who has a rather embarrassing problem down below, which means going on a diet. In Grimsby, nine-year-old greyhound Carter could have a serious underlying health problem – so it's straight into surgery for him; and Nurse Charlotte has a particularly unusual patient to treat - as a stray corn snake is brought in. Meanwhile in Islington some cute kittens visit the mobile unit for vaccinations.

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