Lily, Martha and Jas are smart but socially awkward girls trying to make sense of life, boys and fitting in. Jas has fallen in love big time with the school locusts and is tenderly looking after them. When Mr Malone, Lily and Mr Salford accidentally let them escape they daren't break the news to Jas. Meanwhile, Martha feels abandoned when Ollie is totally preoccupied with Kate, his new phone app. Appli-Kate is alarmingly human-sounding and acting - she can seemingly do anything Martha can - and better.