The world has gone wrong.
Rivers flow backwards, whole towns vanish under water, and the life of every Minnipin is in danger.
The outlaw heroes from The Gammage Cup – older now and needed at home – cannot journey forth to uncover the source of the troubles. Instead, five unlikely Minnipins find themselves drafted as heroes... in spite of their protests that they are not heroes at all.
But what is a hero, anyway? A larger-than-life figure full of swagger? Or just an ordinary someone, like Glocken and his comrades – Minnipins who will march across an unforgiving desert into who-knows-what, battling horrors large and small just because everything and everyone they care for depends on them.