To save themselves from peril, Manny, Sid, Diego, and the rest of the herd leave their home and embark on. After the events of 'Ice Age: The Meltdown', life begins to change for Manny and his friends: Scrat is still on the hunt to hold onto his beloved acorn, while finding a possible romance in a female sabre-toothed squirrel named Scratte.
To avoid a really bad frostbite, the planet's majestic creatures - and a few small, slothful ones - begin migrating south. Set after the events of Continental Drift, Scrats epic pursuit of his elusive acorn catapults him outside of Earth, where he accidentally sets off a series of cosmic events that transform and threaten the planet. Watch Ice Age 3 Dawn of the Dinosaurs Online for free. The Earth is a wondrous, prehistoric world filled with danger, not the least of which is the beginning of the Ice Age.