Fifty-six-year-old grandma Linda is desperate to get a driving licence so she can help look after her grandkids, but as an older learner who is hard of hearing, she has failed her test six times. Teaching Linda is 53-year-old little sister Debbie, but after three years in the car together, both of them are at the end of their tethers... and neither of them is ever wrong! During their five days at Scarlett’s driving school, the pair suffer serious parking problems and navigation nightmares. Can they learn the skills they need and find some much-needed calm in the car to help Linda pass her seventh test?

• Scarlett Moffatt