Dani has moved house and she wants to celebrate in style with a big party for all her mates, but finds everything thrown into chaos when the oddly-familiar DJ Jack causes mayhem. Meanwhile, Dani's brother Max plans to embarrass his big sister and ruin her party, just as soon as he can find out why his best friend Ben is under investigation by a secret agent.

Dani needs to raise her profile but Sam and Jack's attempts to help her create a perfect pop promo may not have the required effect. Meanwhile, Max is in need of cash and decides he has the perfect solution - appearing on top quiz Family Misfortunes. The first problem? Max will need his sister to appear with him. The second problem? Max and Dani find themselves up against top trivsters Erik and Erika, who haven't lost a quiz in 19 years.