Boog (Martin Lawrence), a domesticated grizzly bear with no survival skills, has his perfect world turned upside down when he meets Elliot (Ashton Kutcher) a scrawny, fast-talking mule deer. When Elliot convinces Boog to leave his cushy home in a park ranger's garage to try a taste of the great outdoors, things quickly spiral out of control. Relocated to the forest with open season only three days away, Boog and Elliot must acclimate in a hurry. They must join to unite the woodland creatures and take the forest back into nature's control!