A meeting in a London bus with jewel thief Lady Christina takes a turn for the worst for the Doctor when the bus takes a detour to a desert-like planet, where the deadly Swarm awaits.
艾瑞克·巴纳,安娜·托芙,黛博拉-李·福奈丝,罗宾·麦克丽薇,茜茜·斯特林格,Lucy Ansell,杰奎琳·麦根斯,杰里米·林赛·泰勒,理查德·劳斯伯格,Tony Briggs,Kenneth Radley,Archie Thomson,Ash Ricardo,英格丽·托蕾莉,Matilda May Pawsey,Brendan Green,Samantha Jones