An uplifting and touching documentary special which tells the story of one of Britain's best-loved sitcoms as it comes to an end after 17 years. It charts the journey of a little-known comedy that started life on BBC3 which, with its blend of relatable characters and infectious catchphrases, grew into a must-watch show that captivated the hearts of the nation. Featuring unprecedented access to creators James Corden and Ruth Jones as well as the cast and crew. We see filming of the final episodes as they all say goodbye to this much-cherished show. An array of celebrity fans have their say on the show's influence on British society and why they believe Gavin & Stacey is the best show on TV.