Computer-animated comedy from director Peter Lepeniotis featuring the voice talents of Will Arnett, Brendan Fraser and Liam Neeson. When sassy squirrel Surly (Arnett) and his mute rat friend Buddy decide to tackle their park's food shortage problem by stealing from a dangerous group of urban animals, their plan goes awry as they come face to face with urban leader Raccoon (Neeson). After a series of unfortunate collisions, Surly is banished from the park leaving Buddy to fend for himself. Noticing a human's nut cart in the park, Surly sets about re-establishing his position in the colony; little does he know that the nut cart is a cover for a group of thieves who plan to rob the local bank.