Sam, Noah and Chiedza battle it out to win Year Spheres in games including Space Race and Lootin-khamun. And Rattus makes Dave the centerpiece of his star-studded celeb museum, which sounds way more glamourous than it is.

Danyal, Rose and Tia get to test their knowledge of Horrible Histories with quirky quiz questions, set by the country's finest historical brains, and Rattus Rattus.