After the excitement of their previous adventure, Boog the bear, Elliot the deer, and their forest friends are settling into a peaceful life. Elliot is over the moon, as he is preparing to marry his beloved Giselle. However, their idyllic forest life takes an unexpected turn when Mr. Weenie, the dachshund who escaped from his previous owners to live in the wild, is suddenly kidnapped by a group of pampered pets led by Fifi, a toy poodle with a grudge against wild animals. Determined to rescue their friend, Boog, Elliot, and the rest of the gang embark on a daring mission to save Mr. Weenie before he is convinced to return to a domesticated life.

As the group ventures into unfamiliar territory, they encounter a wide array of quirky and formidable characters, making their mission increasingly challenging. They need to navigate various obstacles and outsmart Fifi and his band of pets, who are equally determined to retain Mr. Weenie. Throughout their journey, the ragtag band of forest creatures learns valuable lessons about friendship, courage, and the importance of staying true to oneself. The forest friends must work together and use their individual strengths to overcome adversity, making this rescue mission an unforgettable adventure.