The Twilight Kingdom, by Will Shindler

The blood of innocents has been spilt a terrible sequence of events has been set in motion. The forces of darkness are on the move.

Deep underground, an army of light prepares itself for the oncoming war.

The Doctor's used to winning. Stumbling in, reading the face of the enemy, and then beating the odds but what if this time he's got it wrong? Charley and C'rizz think he has.

Stripped of all that is familiar, just who is the Doctor? Major Koth thinks he knows.

Lost among the dark caverns of an unknown world, has the Doctor finally met his match?

Starring Paul McGann (the Doctor), India Fisher (Charley), Conrad Westmaas (C'Rizz) and Michael Keating (Koth), with Alan Rothwell (Janto), Ann Carus-Wilson (Vayla), Dale Ibbetsen (Quillian), Jeremy James (Bryn), Vivien Parry (Tysus), Alison Sterling (Koth's Wife) and Stephen Perring (the Kro'ka). Directed by Gary Russell.

The Axis of Insanity, by Simon Furman

What is... the Axis?

For The Doctor and his travelling companions, Peri and Erimem, it's a twisted playground, where reality, morality and sanity no longer apply. Stranded within a dimensional nexus, beset by the molten fury of the Firedbreed, they must unwrap a terrifying mystery of damaged timelines and dark science... before the corruption of the Axis spreads and reality itself crumbles.

Pitted against a warped and deadly mind, The Doctor faces his own past transgressions, and the very nature of what it is to be a Time Lord.

Starring Peter Davison (the Doctor), Nicola Bryant (Peri) and Caroline Morris (Erimem), with Garrick Hagon (the Jester), Roy North (the Overseer), Liza Ross (Jarra To), Marc Danbury (Tog), Stephen Mansfield (Bird Trader), Daniel Hogarth (Carnival Barker). Directed by Gary Russell.

The Roof of the World, by Adrian Rigelsford

Tibet. 1917. It's a time of great exploration, with intrepid teams of adventurers heading blindly into uncharted territory, determined to beat inexplicable odds and overcome any challenge they encounter. But some things are not necessarily that easy to defeat.

An ancient evil, perhaps older than time itself, is stirring deep within the heart of the Himalayas. It has always known it will return and finish off what it started so many centuries before. But the time has to be right.

As the TARDIS materialises, with the Doctor determined to take full advantage of an invite to a cricket match, the catalyst that the dark forces need unwittingly arrives.

Starring Peter Davison (the Doctor), Nicola Bryant (Peri) and Caroline Morris (Erimem), with Edward de Souza (Lord Mortimer Davey), William Franklyn (Pharaoh Amenhotep II), Sylvester Morand (General Alexander Bruce) and Alan Cox (John Matthews). Directed by Gary Russell.