Returning to the series is the character of Cuthbert, as played by David Warner, and his faithful assistant Mr Dorrick (Toby Hadoke), who were last seen in the Series Two finale The Final Phase. Also from that series are the race of aliens known as the Laan (Jane Slavin), who also hailed from the Series 2 episodes The Sands of Life and War Against The Laan.
Also appearing from the television series itself is somebody the Doctor and Romana have been trying to avoid for some time - the Black Guardian, with the embodiment of darkness taken on here by David Troughton.
Written and directed by Nicholas Briggs
Released July/August 2016
Starring Tom Baker as The Doctor, with Lalla Ward as Romana and John Leeson as K9, and featuring David Warner as Cuthbert, Toby Hadoke as Mr Horrick, and David Troughton as the Black Guardian
On a brisk winter’s morning in 1850s Yorkshire, Cuthbert, head of the intergalactic business known as 'The Conglomerate' prepares to hijack a very special train.
In the far future, his assistant, Mr Dorrick is awoken by howling alarms. There is a problem with the Quantum Gateway.
In the TARDIS, the Doctor, Romana and K9 detect strange distortions in the Vortex, an energy stream coming from a strange creature called a Laan.
The threads of a plan centuries in the making are coming together. But who is behind this plan? And can anyone possibly escape when history is against them?