A grumpy and bold elderly woman named Nan sets off on a major road trip. She reluctantly agrees to accompany her grandson. They travel to Ireland to visit the woman's dying sister. For many years, the relatives had not spoken due to a serious quarrel. On the way, the grandmother and grandson face wild adventures and encounters with unusual people. The long journey helps them understand each other better and uncover family secrets. The film is presented in enhanced UHD quality using HDR technology.