Sneaking out of her house early one morning, Matilda thinks she’s about to solve all her problems. Instead she meets The Man in The Iron Pants! Awestruck the little girl follows the man through the fog into a magical world. Here every living thing is alive with music, contributing to the symphony that now lies at the heart of Matilda’s quest. Accompanied by Bernard, a bird of dubious character, Matilda and The Man journey to The City. Along the way, despite warnings of looming danger, Matilda trades in her tuba for a pair of her own Iron Pants. It is not until The Shepherd stalks into view that Matilda discovers the dire repercussions of this crucial decision and what her journey will really entail. Driven from the idyllic countryside, through dark ravines and into the derelict streets of the once majestic city, Matilda must discover the secret that binds The Shepherd to The Man in The Iron Pants. As The Shepherd takes centre stage to execute his furioso finale, and the city begins to crumble around them, will Matilda share their fate or will she have the courage to discover what truly makes music worth playing and save herself?