Hidden Danger
Series Episode Number: 33World Premiere: Sat 11 Jul 1964 - 5:15pm BST [BBC One] (United Kingdom)
First Broadcast: Sun 6 Jul 1986 - 11:00pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 53 seconds
7.40 Million (UK)
Appreciation Index: 56 (UK)Chart Position: 22 () (UK)
Recorded on Fri 12 Jun 1964 in Lime Grove D
Archive State: 16mm t/r
The Sensorites take the Doctor, Susan, Ian and members of the spaceship crew down to the surface of the Sense-Sphere. There the Doctor learns about a previous Earth expedition...
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