Leave room under the tree for A Mammoth Christmas! Everyone''s favorite sub-zero heroes are back for a holiday event you won''t want to miss. This festive tie-in with the TV special reunites prehistoric friends Manny the woolly mammoth, Sid the sloth, Diego the smilodon, Scrat the ''saber-toothed'' squirrel, and the rest of your Paleolithic pals in one big unforgettable icecapade!