A one-off documentary that follows the emotional journey of six individuals as they attempt to achieve the one thing that could change their lives - control of their stammer. A lorry driver, a teacher, a pharmacist, a professional photographer, and two school boys have all agreed to undergo a course that claims that it can transform a stammerer's speech in just four days. The course uses physical and psychological techniques and can be life-changing, but it is not for the faint-hearted.