Scrat still desires to hold onto his beloved acorn, while finding a possible romance in a female sabre-toothed squirrel named Scrat. Having hooked-up, Manny and Ellie are expecting a baby. This leaves Manny anxious to ensure that everything is perfect for when his baby arrives. Diego is fed up with being treated like a house-cat and ponders the notion that he is becoming too laid-back. Sid begins to wish for a family of his own, and decides to steal...

When the island's dormant volcano begins roaring to life, Owen and Claire mount a campaign to rescue the remaining dinosaurs from this extinction-level event. Intense sequences of science-fiction violence and peril.