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. Manny and Ellie, having since become an item, are expecting a baby, which leaves Manny anxious to ensure that everything is perfect for when his baby arrives. Diego is fed up with being treated like a house-cat and ponders the notion that he is becoming too laid-back. Sid begins to wish for a family of his own, and so steals some dinosaur eggs which leads to Sid ending up in a strange underground world where his herd must rescue him, while dodging dinosaurs and facing danger left and right, and meeting up with a one-eyed weasel known as Buck who hunts dinosaurs intently. Written by Theshapeshifter

In Rio de Janeiro, baby macaw, Blu, is captured by dealers and smuggled to the USA. While driving through Moose Lake, Minnesota, the truck that is transporting Blu accidentally drops Blu's box on the road. A girl, Linda, finds the bird and raises him with love. Fifteen years later, Blu is a domesticated and intelligent bird that does not fly and lives a comfortable life with bookshop owner Linda. Out of the blue, clumsy Brazilian ornithologist, Tulio, visits Linda and explains that Blu is the last male of his species, and he has a female called Jewel in Rio de Janeiro. He invites Linda to bring Blu to Rio so that he and Jewel can save their species. Linda travels with Blu and Tulio to Rio de Janeiro and they leave Blu and Jewel in a large cage in the institute where Tulio works. While they are having dinner, smugglers break into the institute and steal Blu and Jewel to sell them. Linda and Tulio look everywhere for Blu, who is chained to Jewel and hidden in a slum. Meanwhile, Jewel ... Written by Claudio Carvalho, Rio de Janeiro, Brazil

When Scrat accidentally provokes a continental cataclysm with a storm, Manny is separated from Ellie and Peaches on an iceberg with Diego, Sid and Granny but he promises that he will find a way to return home. While crossing the ocean, they are captured by the cruel pirate Captain Gutt and his crew. However they escape and Manny plots a plan to steal Captain Gutt's ship and return to his homeland in a dangerous voyage through the sea. But the cruel pirates seek revenge against Manny and his family and friends. Written by Claudio Carvalho, Rio de Janeiro, Brazil

When Sid accidentally destroys Manny's heirloom Christmas rock and ends up on Santa's naughty list, he leads a hilarious quest to the North Pole to make things right and ends up making things much worse. Now it's up to Manny and his prehistoric posse to band together and save Christmas for the entire world. Written by realndn06

Scrat is captured by Scratazons who take away his acorn. Now, Scrat must rescue his acorn and escape before the aliens catch him.