Elmo loves his fuzzy, well-worn blue blanket more than anything in the whole world. However, when Elmo's blanket gets sucked through a colorful, swirling tunnel into Grouchland, the yuckiest place on earth, Elmo goes on an adventure to Grouchland to retrieve his prized possession.
| Directing | Gary Halvorson | Director |
| Writing | Mitchell Kriegman | Story |
| Writing | Mitchell Kriegman | Screenplay |
| Writing | Joey Mazzarino | Screenplay |
| Production | Alex Rockwell | Producer |
| Production | Marjorie Kalins | Producer |
| Production | Timothy M. Bourne | Co-Producer |
| Production | Kevin Clash | Co-Producer |
| Production | Brian Henson | Executive Producer |
| Production | Martin G. Baker | Executive Producer |
| Production | Stephanie Allain | Executive Producer |
| Sound | John Debney | Music |
| Camera | Alan Caso | Director of Photography |
| Editing | Alan Baumgarten | Editor |
| Art | Alan Cassie | Production Design |
| Costume & Make-Up | Polly Smith | Costume Design |
| Art | Alan Hook | Set Designer |
