Molly examines her shelf of special things at the back of Mack's stall. She chooses the important letter and remembers the day she got it.
Mack is surprised to get a letter telling him he's got a place on a music and performing arts course, as he didn't apply. He would need to act and dance as well as sing, and he doesn't think he can do either. Molly decides to challenge him to do both.
At the Kids Club, Caitlin thinks Ruby is copying her when they are reading the same book and having the same snack. James reassures her that it's just a coincidence.
Molly shows Mack some moves to help with his dance challenge. Then they try a miming challenge, which Mack excels at. When he takes on the acting challenge, he finds himself playing an alien who speaks a language called Bootle-Barp. With Molly's help, Mack realises he can act and dance - or at least have a go - and he's really enjoyed it.
Caitlin and Ruby have decided to use their copying to have a little fun with James. When he admires a picture Caitlin's drawn, Ruby shows him her picture – it's exactly the same. James is confused until he realises they're playing a trick on him.
When Mack tells Daisy and Molly he will go to college, they are both excited for him. However, Molly then realises the implications – the end of their stall.