Captured by smugglers when he was just a hatchling, a macaw named Blu never learned to fly and lives a happily domesticated life in Minnesota with his human friend, Linda. Blu is thought to be the last of his kind, but when word comes that Jewel, a lone female, lives in Rio de Janeiro, Blu and Linda go to meet her. Animal smugglers kidnap Blu and Jewel, but the pair soon escape and begin a perilous adventure back to freedom — and Linda.

Times are changing for Manny the moody mammoth, Sid the motor mouthed sloth and Diego the crafty saber-toothed tiger. Life heats up for our heroes when they meet some new and none-too-friendly neighbors – the mighty dinosaurs.