After he causes Scratlantis to be sucked down the plughole, Scrat wanders through the landscape with a new acorn in hand. Inadvertently, he falls through into a cave and spots a place to stick his acorn in.
Scrat, le célèbre écureuil à dents de sabre part pour une aventure dans l'espace !
As consequências das trapalhadas de Scrat são sempre graves e, desta vez, ele cria a uma série de eventos cósmicos que abalaram abalarão a Era do Gelo.
