Things really hit the fan when Zira announces she's pregnant, sparking a wave of political panic that she'll give birth to a talking ape who could be the forerunner of the civilization that supplants humanity. It's a downbeat ending, with a hopeful epilog, but on the whole it may be the most satisfying of all the sequels. There are really no extras besides the trailers and a web link. Apes being capable of so much more than just scratching the furniture or leaving messes on the carpet, however, they're quickly trained to be a race of slave workers. Audio and video quality are very good.
Extras are limited to the trailers and a web link.
Unfortunately, the city's inhabited by the forerunners of the mutants from movie 2, and they don't cotton to the apes being around. Caesar and his companions fight their way out of the city, but the mutant army follows them back home and all hell breaks loose. The trailers and web link are the only extras. The main extra for the boxed set is the documentary, hosted by the ubiquitous Roddy McDowall, which is a two hour look at the entire series, the TV series it spawned, and the many other ape-related stuff that's happened since the first film. The longest look is taken at the first movie, which is appropriate, and the whole documentary is very interesting and well worth seeing.