Planet of the Apes (1968 film) was well received by critics and audiences, launching a film franchise, including four sequels, as well as a short-lived television show, animated series, comic books, and various merchandising. In particular, Roddy McDowall had a long-running relationship with the "Apes" series, appearing in four of the original five films (absent, apart from a brief voiceover, from the second film of the series, "Beneath the Planet of the Apes", in which he was replaced by David Watson in the role of Cornelius), and also in the television series. The original series was followed by Tim Burton's remake "Planet of the Apes" in
Planet of the Apes (2001 film) space missions. His favorite simian co-worker is a chimpanzee named Pericles. With a deadly electromagnetic storm approaching the station, a small space pod piloted by Pericles is used to probe the storm. Pericles's pod heads into the storm and disappears. Against his commanding officer's orders, Leo takes a second pod and goes in pursuit of Pericles. Entering the storm, Leo loses contact with the "Oberon" and crashes on a planet called Ashlar in the year 5021. He discovers that the world is ruled by humanoid apes who speak English, use domesticated horses for transportation, and treat human beings as slaves.