When the icy continent splits in two, separating Manny from his family, he sets off with Sid and Diego to find a land bridge that will reunite them, but before long they run into a rowdy group of pirates. 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.

The story of an ongoing battle deep in the forest between the forces of good and the forces of evil. When a teen age girl finds herself magically transported into this secret universe, she must band together with a rag-tag team of fun and whimsical characters in order to save their world, and also ours.