The expedition are searching for a rare mineral, Parrinium which can bring relief to a plague sweeping the galaxy, but first they must discover what is draining their power supplies aboard their ships?
Unfortunately another stranded space vessel arrives on Exxilon, and this one is carrying the Daleks....
Jon Pertwee and Elisabeth Sladen star in a thrilling adventure with the Daleks, who are even more sinister and manipulative in this story!
Available on DVD from 18th June, 2012.
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