The film opens with a montage, set to Tim Wheeler's "Feels Like Summer". The montage shows clips of a young farmer just starting out his career with a new flock of lambs. He bottlefeeds the smallest, Shaun, and lets the little ones run and play with his new puppy Bitzer. Sometimes he plays with them as well, and they are a big happy family of sorts. He also takes a photograph of himself holding baby Bitzer and baby Shaun, with the rest of the lambs gathered round them. He keeps this photograph for many years.