 The Doctor arrives on a nameless jungle planet in the far future, where the Doctor befriends a warrior woman named Leela. The Doctor learns that two warring tribes The Saveteem (Leela s tribe) and The Tesh (unseen) both worships a god called Xoanon. But the Doctor and Leela find Xoanon isn t who he appears to be and is in reality, a computer of a crashed spaceship that has split personality disorder and has half of the Doctor s personality.