Manny the mammoth nervously pampers his expectant mate, Ellie bristles at the thought of Manny's domesticated existence. Meanwhile, Sid the sloth continues to annoy everybody, and Scrat the rock rat is still trying to get that acorn. Although Sid tries his best to raise the three dinosaurs, their rambunctious behavior scares away all the other animals' young and ruins a playground Manny built for Ellie's baby, and well as the ice mobile Manny made..