On the ocean planet Gardezza, deep beneath the Viscoid, a mysterious capsule is recovered from the Time War, and an equally mysterious stranger found within. The Doctor's reputation precedes him, even here - but can he be trusted?
The Time War rages around Arcking - a planet serving as a sanctuary for the sick and injured. But Arcking is protected by a mysterious, powerful force: a force the Master will stop at nothing to harness even if time itself is against him.
With his plans approaching fruition, the Master travels to Stamford Bridge in the 1970s: a location he believes might hold the key to his success. But what terrible secret lurks under the stairs of No 24 Marigold Lane?
