Agnetha, Benny, Bjorn and Anni-Frid, four famous names that spell ABBA - one of the greatest pop groups in the world. 'The Winner Takes It All' is their story - all four members of the band talk exclusively about their lives before, during and after ABBA. We follow their fascinating 25 year journey, concentrating on the eight glorious years in which they conquered the world. We see exclusive extracts from both rehearsals and performances from the smash hit West End musical MAMMA MIA! based on the songs of ABBA. Combined with a wealth of songs, concert footage and intriguing interviews with the likes of Bono, Malcolm McLaren, Paul Gambaccini, Tim Rice and Steps.