Born Free: A New Adventure teach the lioness how to survive in the wild. In 1960, Joy Adamson published a book called "Born Free", based on her (and her husband, George Adamson) experience raising the lioness Elsa. The book was followed by two others, "Living Free" (1961) and "Forever Free" (1963). In 1966, the first book was adapted into a movie. The film was a commercial and critical success, leading to a 1969 documentary called "The Lions are Free" and then a sequel, released in 1972 and based on the third book, but using the name of the second book. In 1974, the NBC did
George Adamson and devoted himself to raising lions who could not look after themselves and training them to survive in the wild. In 1970, he moved to the Kora National Reserve in northern Kenya to continue the rehabilitation of captive or orphaned big cats for eventual reintroduction into the wild. George and Joy separated in 1970, but continued to spend Christmas holidays together until she was murdered on 3 January 1980. On 20 August 1989, George Adamson was murdered near his camp in Kora National Park, by Somali bandits, when he went to the rescue of his assistant and a young European