Part FourSeries Episode Number: 643
World Premiere: Sat 27 Sep 1986 - 5:46pm BST [BBC One] (United Kingdom)
First Broadcast: Wed 10 Jun 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 20 seconds
3.70 Million (UK)Appreciation Index: 72 (UK)
Chart Position: 97 () (UK)
The Doctor is foxed by Drathro's logic so it takes Glitz's blunt lies to buy them some time until Ravolox can be saved. Meanwhile the Tribe make a foolhardly attack on Marb Arch.