Harriet's textile class have won a trip to London Fashion Week, but she and her best friend Nat face an outfit disaster before they even get there.

With just days to set up the most crucial casting of the season, Wilbur searches for Harriet — who's more concerned about a video that’s gone viral.

Harriet struggles with how to break the news to Nat. But when she gets back to school she learns that Nat — and everyone else — knows the whole story.

After an unsuccessful detour, the Manners family head to the perfume shoot. Poppy makes an announcement on social media, and Harriet posts her own video.

While Harriet tries to put her social slip-up behind her, chaos reigns at Infinity. Nick arrives at school as the students prepare for the talent show.

Harriet resolves to stay true to herself, no matter what. When Wilbur visits the Manners', they all hatch a plan to get Harriet back on the catwalk.