Gee, that was a pretty short ice age. Seems that the Earth is now warming back up again, and our heroes, the mastodon, the saber-toothed tiger, the sloth and the squirrel thing, must find a new home to live in. Queen Latifah, Jay Leno and Seann William Scott add their voices to the cast this time around. If your kids were entertained by the first one, they'll be entertained by this one. 91 minutes PG.