Britain's most beloved Nan goes on the road trip of a lifetime from London to Dublin as her grandson, Jamie, attempts to reunite her with her sister, Nell. The trip doesn't go quite as Jamie imagined because Nan has her own plans, getting them into all sorts of wacky situations along the way. They soon find themselves partying with an Australian rugby team and dancing at an all-night rave -- all with the police hot on their trail. Wikipedia