Happy Birthday, Nitwit! There's a party and you're invited in this latest adventure in the blockbuster series!Hap-pea birthday to you,  Mashed potato and poo. Hap-pea birthday, dear NITWIT, Hap-pea birthday to you! It's night-time in the supermarket and the veggies are busy baking for a SUPER special someone's birthday. But can you guess who's going to try to ruin the surprise?! All is revealed in the explosively delicious new adventure in this beloved blockbuster series. SUPERTATO: now a major CBeebies TV series.