It's summertime in the little village of Welford. The sun beams down on the rolling green Yorkshire hills, and the scent of freshly cut grass is in the air. Local vet Mandy Hope and her boyfriend Jimmy Marsh are happily setting up their new home, and life at animal rescue centre Hope Meadows is as busy as ever. When the Welford Garden Committee announces a Midsummer Fair, Mandy is thrilled to be invited to judge the animal-themed fancy dress competition. The whole of Welford turns out for the fair, and the fancy dress competition is a roaring success. Three-year-old Herbie and eighteen-month-old Kiran come as Bo Beep and her lost sheep and Mandy can't help but melt. Maybe having children of her own isn't such a ridiculous idea after all? But in the euphoric mayhem of the day, little Kiran goes missing and a frantic search ensures. When the lost lamb is rumoured to have been seen on nearby Honeysuckle Lane, it's all hands on deck to solve the mystery and restore him to his rightful home.