Kathleen is 80 years old. After a run-in with an intruder, her daughter wants her to move into a residential home. Shes not having any of it. What she craves - needs - is adventure. Liza is drowning under the daily stress of family life. The last thing she needs is her mother jetting off on a wild holiday, making Liza dream of a solo break of her own. Martha is having a quarter-life crisis. Unemployed, unloved and uninspired, she just cant get her life together. But she knows something has to change. When Martha sees Kathleens advert for a driver and companion to take an epic road trip across America, she decides this job might be the answer to her prayers. Travelling with a stranger? No problem. Shes not the worlds best driver, but it couldnt be worse than living with her parents again. And anyway, how much trouble can one 80-year-old woman be? As these women embark on the journey of a lifetime, they all discover its never too late for adventure ...