Broadcast: Saturday 15th February 2014
12:30am-1:00am AEDT (13:30 GMT) < > « »
SyFy (Australia) (adverts during broadcast)

Featuring: Peter Davison, Nicola Bryant, Mark Strickson, Dallas Adams, Anthony Ainley, Edward Highmore, Peter Wyngarde

A young American girl, Peri, discovers a strange artefact while holidaying with her stepfather in the Mediterranean. After an accident, Turlough brings her aboard the TARDIS to recover. The artefact leads the Doctor to the volcanic world of Sarn, where Turlough begins to find the natives strangely familiar. Peri is left behind on the TARDIS with Kamelion, who begins to act strangely, finally shapeshifting into the form of the Master!
Synopsis Source: Foxtel Online Guide