Is cailín cliste cairdiúil ciúin í Úna, atá ag fágáil slán leis an bhunscoil. Is fada le hÚna go mbeidh sí féin agus a CGD (cara go deo), Áine, imithe chun na meánscoile agus ar shiúl ón mhúinteoir a bhí acu ar feadh na mblianta, Brian Mac an T-ex. Idir mháthair a chuireann náire uirthi, shioráif scoile, agus timpeallacht dhifriúil, tagann athrú mór ar shaol Úna nuair a bhogann sí chun na meánscoile. Idir shúgradh agus dáiríre atá an scéal spleodrach seo faoi na fadhbanna a d’fhéadfadh teacht sa bhealach ar dhuine óg ag tráth íogair ina saol.

Out with the old and in with the new! Úna and her best friend Áine bid good riddance to their primary school and their old teacher Brian Mac an T-Rex. The old certainties are no more and changes come aplenty: a new school, new teachers, new friends – new challenges to overcome. An engaging story that mixes candour and humour as it explores the growing pains that come with finding your feet as a teenager.