Overview: Among the drivers in this episode are former tank commander John Hamilton, who has never actually taken a driving test. Geoffrey Gillow's daughter wants him to stop driving, but he is determined to pass with flying colours to show he is safe to drive. Former teacher Patricia Deacon needs to drive so she and her husband Geoff can get around, but she is not keen on anyone grabbing the steering wheel while she drives. Returning to the series are 100-year-old Mary Ellis and 98-year-old Harold Veazey, who last time almost ran into an articulated lorry.