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. A tug-of-war between Elmo and his friend sends his blanket to faraway Grouchland, a place full of grouchy creatures and the villainous Huxley. Elmo embarks on a rescue mission, learning important lessons about sharing and responsi...