This is the story of a baby named George(Brendan Fraser), who got into a plane crash in a jungle, stayed alive and was adopted by a wise ape. Life in the jungle is pretty sweet for George, until a beautiful, blonde American heiress, named Ursula Stanhope(Leslie Mann) has traveled to Bukuvu from San Francisco is search of adventure. Her intended, Lyle Van de Groot(Thomas Haden Church), pursues her in hopes of capturing the legendary White Ape who is supposed to exist in the mountains. Ultimately, a romance blooms between Ursula and George, an extremely clumsy gorilla boy raised by an erudite ape. After they are found, Ursula takes George to the USA in San Fransisco. Meanwhile, Lyle and his devious trackers pursue schemes of their own to kidnap George's elephant "doggie."