The trailer opens amidst a blizzard. Scrat is trying to get through it, when he notices his acorn. During his struggles to reach it, he is engulfed in snow and frozen. He manages to pop open his eyes, using them to lean himself toward the acorn. He successfully pulls it out, releasing warm gases from beneath the ice, which thaws Scrat. Feeling around with his foot, he discovers he has made a large hole in the ice, and falls through. After hitting a few trees, he slides down to the tip of a scaly back and tail, losing his acorn. He slides down to the tip of the tail as it rises, coming face to face with a Tyrannosaurus rex. The end of the trailer shows the Tyrannosaurus rex roaring at Scrat and cuts to the inside of the dinosaur's mouth, where Scrat is seen, his eyes twitching.

Also, according to more recent movie cutouts, a new character, which appears to be a female Scrat, will star in the movie.