Polly is singing a solo with the school choir live on radio. Unfortunately the newest member of the choir is Nero, and he has other plans.
Nero makes a film to celebrate the school, but his real plan is to make himself a star. Meanwhile, Polly's efforts to retake a geography test bring her into conflict with Mr Nunn.
Dexter and Lizzie have the chance to move to America, but how will they break it to Nero? And how will Nero break the news to his friends?
Nero's finally leaving Elmsmere, but how is Polly going to take losing her best friend? And will Dexter have second thoughts about going when he's introduced to his replacement?
Owen loves wearing his granddad's coat, until his look means he's mistaken for a teacher. Amber and Violet try to avoid the list of stupid celebrations for Darnesh's birthday.
There's a phantom prankster on the loose in school but if it's not Eli then who can it be? Amber is determined to win a scooter in a school competition, whatever it takes.
Polly can't wash off a fake tattoo. Can she get through the day without Bell discovering? Ingrid gives a remarkable performance in a battle of the bands competition.
Bell agrees to take Maddie's son on a trip to the local museum, but loses him. Amber tries to convince Ingrid that mummies really exist, using Darnesh and some toilet roll.
Polly launches a phone into space on a weather balloon. Owen decides to earn his Scouts entertainment badge with the help of Dinsdale, a ventriloquist's dummy.
Isaac tries to catch a mouse in school using Darnesh's cat, with disastrous consequences. Polly tries to help Owen move on emotionally by getting Katie a new boyfriend.
CJ wins a family holiday and has to get Bell and Maddie to pretend they're married. Polly holds a raffle for cash to decorate the common room, but what will they use for a prize?
Fleur and Eleesha get out of a boring trip with Polly by inventing Fleur's fake nanna. But when Polly realises they're lying, she decides to take her revenge.
Polly plans the end-of-year Talent Show, but could it mean the end of her school career? Amber tries to impress Ingrid by inventing the craziest talent act of all time.