Introduction / Sypnosis:

Ellie (Queen Latifah) and Manny (Ray Romano) are expecting their first child, and Manny is obsessed with making life perfect and safe for the family. At the same time, Diego (Denis Leary) finds himself unable to catch a gazelle he has been stalking and decides to leave the herd, believing that he is losing his predatory nature as a tiger. Sid (John Leguizamo) grows jealous of Manny and Ellie and “adopts” three apparently abandoned eggs that he finds in an icy underground cavern. Manny tells him to put them back, but Sid instead looks after the eggs, which hatch into baby Tyrannosaurus the next morning.

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. The mother dinosaur soon returns and carries both Sid and her youth underground, with Diego in pursuit. Manny, Ellie, Crash, and Eddie (Seann William Scott, Josh Peck) follow as well and discover that the icy cavern leads to a vast jungle populated by dinosaurs thought to be extinct. Here, an Ankylosaurus threatens the herd despite Diego’s efforts to fend it off; they are saved from a further crowd of angry reptiles by a one-eyed, slightly crazed weasel named Buckminster, or Buck (Simon Pegg).