When Lin, Josie and Minnie left Miss Hamilton's class at Middleton Ferris County Primary School, sixty years ago, they could only dream about what the future had in store for them. The one thing they knew for certain was that their friendship would thrive. Years later and life hasn't always been kind. Josie is still mourning the loss of her beloved husband Harry a year after his sudden demise. Lin is hoping to celebrate her fiftieth wedding anniversary with husband Neil, but he's suddenly keeping secrets and telling her lies, so she's suspecting the worst... And as for Minnie, well she loves her life in Oxford academia, but with no family to call her own, she sometimes wonders if the sacrifices were all worthwhile. So, when the ninety-year-old Miss Hamilton -- or Cecily as she lets them call her now -- glides gracefully back into their lives on her glamorous purple mobility scooter, the ladies are in need of inspiration and fun. And over their regular lunches, the friends start to dream of leaving the past in the past and embracing the future, because there's nothing you can't achieve with good friends at your side.