The Doctor and his companions are trapped in E-Space, struggling to find their way back into their own universe. Arriving at an intersection, the TARDIS is invaded by a refugee of the enslaved Tharil race.

With K9 damaged by the Time Winds, the Doctor, Romana and Adric explore the strange white eternity of the Gateway, where past, present and future cross over.

They also meet the crew of the Privateer, led by the embattled Rorvik. As all parties strive to find a way out, the Doctor realises that Rorvik’s ship holds the terrible secret of the Tharils’ history, as well as the means of their liberation.

Jon Culshaw reads Stephen Gallagher’s novelisation (writing as John Lydecker) of his 1981 TV adventure starring Tom Baker as the Doctor, now newly extended and restored from an unpublished manuscript. John Leeson provides the authentic Voice of K9.