A gregarious gorilla named Pete and his gorilla companions who live in the zoo are bored and tired of doing the same old thing night after night, so they sneak out in search of an adventure that is sure to excite. Mischief and "monkey business" ensue on the gorillas' unforgettable midnight escapade through the city. On their quest for fun they go shopping at the most lavish clothing store in town, followed by a visit to an old-fashioned ice cream where they feast on every flavor of the finest ice cream. But, the gorillas' adventure is cut short when they are discovered monkeying around in a gymnasium by the night watchman. Will the gorillas find a way to get back to the zoo before morning? Gorillas' Night Out is a humorous tale about just how far a gorilla will go in pursuit of the ultimate night on the town.