Elmo and his beloved blue blanket are inseparable. When Oscar carelessly tosses the fuzzy blanket into his trash can, Elmo dives in after it. He is suddenly plunged into Grouchland -- the land of Grouches, stinky garbage and the greedy Huxley (Patinkin) who hasn't learned how to share. Elmo and all his friends from Sesame Street embark on a fun-filled adventure with one mission -- to rescue Elmo's blanket. On the way, Elmo encounters a giant chicken and even the Queen of Trash (Williams) herself! It's a grouch-loving good time filled with fun, sensational songs and all of your favorite characters!