Between 2000 - 2010 there was an underground music scene in South Wales that was unique and meant the world to those involved, but to the outside world, it didn't exist. Later the bands and artists who emerged from that scene would find acclaim and success, but before all that, they were young, passionate and a close community of friends who just dreamed about being MASSIVE Massive: The Amazing Rise and Fall is their story.... FRIENDSHIP. HYPE. LEGEND.

Don Williams is a pianist in local Pontypridd bar. When his singer is murdered by a member of the local Taffia Don is distraught. He's suffered loss before. When the police are unable to do anything for Seren Don decides to do something himself. He knows who did it and will make any sacrifice for Seren's justice.