On an ordinary morning, in an ordinary flat, an up-till-now perfectly ordinary Bertha does an extraordinary burp. A burp so extraordinary, it knocks things over. A burp so humongously big that very soon it's causing havoc in the school canteen, the playground, not to mention her grandad's apple trees... On an ordinary morning, in an ordinary flat, an up-till-now perfectly ordinary Bertha does an extraordinary burp. A burp so extraordinary, it knocks things over. A burp so humongously big that very soon it's causing havoc in the school canteen, the playground, not to mention her grandad's apple trees... Such a burptastic secret cannot stay quiet for long. And soon enough it lands Bertha her very own celebrity stardom...but is it all just a lot of hot air?