Three primary school friends have found themselves split onto different tables, all because of their teacher’s new ?minibeast’ labelling system: they are now Butterfly, Moth and Worm. But while the trio are working out how the hierarchy of their new learning groups could have a negative impact on social order, there’s a much more immediate threat on the way, creeping ever-so-slowly from the corner of their lives. Will they spot it before it’s too late?