Few bands have been able to dominate the industry in the same way as ABBA. Bursting onto the scene at the 1974 Eurovision Song Contest, ABBA took the world by storm, going on to sell over 300 million albums and singles and give birth to the billion-dollar franchise Mamma Mia. But their fame didn't come without pain. Behind their lyrics were honest signs of true heartbreak. Since announcing their break in 1982, ABBA have continued to welcome new fans, generation after generation. Follow their journey to celebrity stardom, through archival interviews and performances from ABBA, with added inside knowledge from leading industry professionals.