While scavenging for food, RJ the raccoon enters the cave of Vincent the bear, who has a wagon full of human food taken from a nearby rest stop. RJ accidentally wakes Vincent from his hibernation, and in a race to escape, causes the stash to roll out onto the nearby highway and get run over. To avoid being eaten himself, RJ promises Vincent that he will completely replace the stash within the week.
RJ heads towards a recently built suburban housing development in Indiana, separated from a forest glade by a large hedge. There he discovers a pack of animals recently awoken from their hibernation, led by Verne the turtle; the others include squirrel Hammy, skunk Stella, porcupines Penny and Lou, along with their triplet sons, Spike, Bucky and Quillo; and opossum Ozzie and his daughter Heather. The animals are scared, as the development had been built during their hibernation and they fear they will be unable to forage for food in the small glade. RJ shows them the amount of food humans consume and waste and suggests they forage from the humans. Verne is hesitant but the other animals acquiesce. They make bold attempts to steal food directly from the humans, with RJ secretly guiding them to help collect the food he needs to replace Vincent’s stash.
When the animals raid the trash cans of the homeowners-association chairman Gladys Sharp, she calls an animal exterminator named Dwayne LaFontant, who offers to install in her backyard an illegal, lethal trap called the Depelter Turbo. Verne sees this and tries to warn the others, but RJ insists they will be okay. Fearing for the safety of the pack, Verne attempts to return what they stole; he and RJ argue, causing a small rampage through the development and destroying the stash RJ had collected for Vincent. RJ rallies the others to raid Gladys’ home directly on the night before a large party. With Stella disguised as a cat to distract Gladys’ own cat, Tiger, the others enter Gladys’ home and collect all the food. RJ inadvertently reveals his duplicity to the animals, just as they are discovered by Gladys who calls Dwayne. RJ escapes with the food for Vincent but leaves the other animals to be captured by Dwayne.