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.
| Directing | Steve Connelly | Director |
| Writing | Simon Farnaby | Writer |
| Writing | Laurence Rickard | Writer |
| Production | Tim Bevan | Executive Producer |
| Production | Ben Boyer | Executive Producer |
| Production | Imogen Cooper | Producer |
| Production | Eric Fellner | Executive Producer |
| Production | Morwenna Gordon | Executive Producer |
| Production | Debbie Pisani | Line Producer |
| Production | Laurence Rickard | Associate Producer |
| Sound | Philip Pope | Music |
| Crew | Pete Rowe | Cinematography |
| Editing | Mike Holliday | Editor |
| Art | Lucy Spink | Production Design |
| Art | Andrew Lavin | Art Direction |
| Costume & Make-Up | Jacqueline Mills | Costume Designer |
| Costume & Make-Up | Lisa Cartlidge | Makeup Trainee |
| Costume & Make-Up | Samantha Denyer | Hair Designer |
| Costume & Make-Up | Vicky Fields | Makeup & Hair |
| Costume & Make-Up | Sophie Harmon | Makeup & Hair Assistant |
| Costume & Make-Up | Liberty Haynes | Makeup & Hair Assistant |
| Crew | Dan Bentham | Post Production Supervisor |
| Production | Jo Hunter | Production Manager |
| Production | Adrian Kelly | Production Manager |
| Directing | Adam Lock | First Assistant Director |
| Directing | Jamie D. Allen | Second Assistant Director |
| Directing | Julija Mickėnaitė | Third Assistant Director |
| Sound | Robert Brazier | Dialogue Editor |
| Sound | Wayne Brooks | Sound Effects Editor |
| Sound | Luisa Hadley | Foley Editor |