Christine Bleakley and Paul Merton are joined by a bona fide Bond girl Gemma Arterton. Dom Littlewood meets a man who is on a motoring mission to sort out unfair parking tickets, Arthur Smith sets tongues wagging when he investigates double speak, Marty Jopson measures the speed of sound and Mark Carwardine goes ape as he finds out how a corner of Kent is helping to save the African Gorilla.