Once upon a time, a people of great artistry and great knowledge ruled the planet Mekalion: the Kamille. For a thousand years, they prospered peacefully. Then came disaster, when their sun set forever. Facing extinction, the Kamille made the Locus, a device to sustain their minds; and fashioned shape-changing machines, to act out their wishes on the physical plane… Servants they called the Kamelion. Written By: Jonathan Morris Directed By: Ken Bentley Cast Peter Davison (The Doctor), Janet Fielding (Tegan Jovanka), Mark Strickson (Turlough), Jon Culshaw (Kamelion), Christopher Naylor (Alternative Kamelion / Chaos Soldier). Producer Scott Handcock Script Editor Alan Barnes Executive Producers Jason Haigh-Ellery and Nicholas Briggs