Set after the occasions of Continental Drift, Scrat's epic pursuit of his elusive acorn catapults him exterior of Earth, the place he by chance units off a collection of cosmic occasions that rework and threaten the planet. To avoid wasting themselves from peril, Manny, Sid, Diego, and the remainder of the herd depart their residence and embark on a quest filled with thrills and spills, highs and lows, laughter and journey whereas touring to unique new lands and areas.