The people on both sides of the portal celebrate the holiday season. Debbie learns about the Yonderland holiday of "Thanktival" and the elders and their children sing to save the realm. Negatus hatches a plan to steal everyone's presents.
Mathew Baynton , Jim Howick , Simon Farnaby , Martha Howe-Douglas , Laurence Rickard , Ben Willbond , Anthony Stewart Head , Alison Steadman , Dan Renton Skinner , Matthew Stagg