When Scrat creates a meteor shower that threatens the Earth, the animals must band together to find a way to keep one giant meteor from destroying the world.
Scrat's constant quest for an acorn causes a shift in the ice. Manny, Sid, and Diego end up stranded on an iceberg in the middle of the sea. A group of misfit pirates are determined to stop the trio from ever returning home.
"Manny, Sid and Diego go where no herd has gone before--on a high-seas adventure aboard an iceberg. But a menagerie of misfit pirates are determined to shiver their timbers"--Container.
An expedition of scientists and journalists sets out in search of a lost colleague on the island of Caprona in the Arctic, and discover a tropical oasis with prehistoric monsters and savage natives.