Boyband New Hope Club surprise two of their biggest fans in the studio and play their latest hit. Blue Peter's Radzi takes on the role of secret agent and goes 'In Yer House'.

When someone forgets to book the studio audience, Sam and Mark are left with time on their hands to reminisce over some of the highlights of the current series. It's been emotional.

Join Sam and Mark for more hilarious pranks and festive surprises. There are brand new games and fantastic guests, including Kimberly Wyatt and Hacker T Dog.