Bob Monkhouse and Kenneth Connor star in this dental comedy caper. Colonel J.J. Proudfoot (Eric Barker) of Proudfoot Industries is looking for a qualified dentist to endorse his new brand of toothpaste, knowing full well that such an alliance would result in said dentist being struck off poste haste. He gets lucky when he finds two inept dental school graduates, David Cookson and Sam Field (Monkhouse and Connor), who fail to read the contract before realising that they have sacrificed their entire career for a brand of toothpaste that doesn't even work. Dental gags and puns abound as the daft duo embark on a series of ever more desperate attempts to salvage their prospects. Shirley Eaton co-stars as the sexy dental nurse.