Broadcast: Wednesday 5th March 2014
12:30am-1:00am AEDT (13:30 GMT) < > « »
SyFy (Australia) (adverts during broadcast)

Featuring: Peter Davison, Janet Fielding, Sarah Sutton, Matthew Waterhouse, Beryl Reid, Alec Sabin

On Earth in the 26th century, in a network of underground caves, a terrifying force has been reducing humans to a sticky gel. When the TARDIS materialises there the Doctor and his companions immediately become suspects. Can the Doctor and his companions prove their innocence and find out what is hidden there?
Synopsis Source: Foxtel Online Guide