Chameleon Tours was a Gatwick Airport-based business offering budget package holidays to Europe for young people between the ages of 18 and 25. Chameleon Tours was actually a front for the Chameleons, who abducted the Humans to their space station, miniaturized and placed in storage in suspended animation. Samantha Briggs had Inspector Gascoigne investigate when her brother went on a Chameleon Tour to Rome and disappeared. The Doctor and Jamie McCrimmon helped her and exposed the Chameleons' operation. (DW: The Faceless Ones)