After Sid (John Leguizamo) pilfers some dinosaur eggs, Manny (Ray Romano), Diego (Denis Leary) and the rest of their prehistoric pals enter a mysterious, underground world to rescue the hapless sloth. During the course of their mission, the gang encounters many creatures great and small, including hungry carnivores and a relentless, dinosaur-hunting weasel named Buck.

Runtime: 94 minutes
Rating: PG​