A new six part adventure for the Doctor, Sarah Jane Smith and the Brigadier, as they encounter an alien space messiah. His name is Kaleidoscope. He claims to have travelled halfway across the universe to warn all humankind that it stands on the brink of extinction. And a certain tenacious young journalist has got an exclusive interview with this alien messiah… But it’s not Sarah Jane Smith who’s got the out-of-this-world scoop – it’s her rival, the unscrupulous Jenny Nettles. Sarah’s busy helping the Doctor and UNIT work out if Kaleidoscope is for real or a fake when RAF Phantoms scramble to intercept an unidentified something homing in on a top-secret missile base. It seems like Kaleidoscope’s apocalyptic predictions might all be about to come true. CAST: Tim Treloar (The Doctor), Sadie Miller (Sarah Jane Smith), Jon Culshaw (Brigadier Lethbridge-Stewart), Christopher Naylor (Harry Sullivan), Gerran Howell (Kaleidoscope), Imogen Church (WRAF Controller), Mark Elstob (SM Roach/Air Commodore Hurley/Norwegian Radar Controller/Nanobots), Helen Goldwyn (Daphne Green), Jasmin Hinds (Jenny Nettles/Lieutenant Kuznetsova), Stephen Noonan (Colonel-General Sokolov/Keeth Hazel/Fairford/Phantom Pilot/Nanobots). Other parts played by members of the cast.

1. The Traitor. Nixyce VII is under Dalek occupation. For many, the only hope of survival is decent medical care, as slave working conditions are appalling. But when you help people to survive under the rule of the Daleks, are you actually helping the Daleks? 2. The White Room. Molly O'Sullivan is back in London, staying in Baker Street, and still trying to help people. But there are dangerous forces abroad. Why are young deserters disappearing? Who are the Huntsmen? And just what is going on at the Blackwell Convalescent Home? 3. Time's Horizon. Something dangerous is heading back into the known universe from the very end of time. The crew of the cryo-ship Orpheus, including Liv Chenka, have their mission parameters to adhere to, but the arrival of the Doctor and Molly changes everything...4. Eyes of the Master. The Doctor, Liv and Molly arrive back on Earth in the 1970s to investigate the Ides Institute. Soon, Molly's 'dark eyes' prove to be at the centre of a plot to seize control of all life in the universe...

National treasure Sheridan Smith returns to the role of Lucie Miller in these four new adventures with the Eighth Doctor! 1. The Dalek Trap by Nicholas Briggs. The thing about black holes is, they’re big and they’re black and they’re deadly, and you’d have to be mad to go anywhere near them. Because anything that falls inside a black hole ends up crushed in the singularity. Unfortunately, the Doctor just went mad, or so it seems, and flew his TARDIS beyond a black hole’s event horizon, causing him and his companion Lucie Miller to end up marooned on a planetoid just inside the event horizon. Along with a Dalek saucer… and something else. Because this is no ordinary black hole… This is the Cradle of the Darkness. 2. The Revolution Game by Alice Cavender. It’s Lucie’s birthday, and her birthday treat awaits. But whatever she’s expecting, it’s not what she’s getting on the colony world of Castus Sigma in the year 3025: ringside seats for the interplanetary Retro Roller Derby – sponsored by Heliacorp, “turning sunlight into gold”! It’s more than just a game, though. For the competitors, it’s a matter of life or death – a New Life with Heliacorp, or a living death on Castus Sigma. Or, on this fateful day, a very actual death. Because there are strange creatures living out on the plain, beyond the colony. Creatures with every reason to want to sabotage the games. Creatures with a grudge. 3. The House on the Edge of Chaos by Eddie Robson. The TARDIS brings the Doctor and Lucie to a vast house on the planet known as Horton’s Orb. The only house on Horton’s Orb, in fact. Outside its outsized windows there’s nothing. No land. No sea. No sky. No life. Just an endless expanse of static. Inside the house, there’s an upstairs and a downstairs – servants below, gentlefolk from the finest of the house’s families above. Alas, there are altogether too few eligible ladies on the upper floors these days. Meaning there’s a vacancy for Miss Lucie Miller, single and unattached…Outside the house, the static howls on. Except now, the static wants to get in. 4. Island of the Fendahl by Alan Barnes. The Fendahl is the death of evolution, the horror that lies in wait at the far end of the food chain. The Fendahl is death itself. And the Fendahl is dead. The Doctor destroyed it many years ago, in another incarnation, when he encountered it in a place called Fetchborough. But if the Fendahl is dead… how can it live again, on the remote island of Fandor? CAST: Paul McGann (The Doctor), Sheridan Smith (Lucie Miller), Matt Lloyd Davies (Jik Gelliska), Amanda Hurwitz (Raz Kalisto), Jonathan Keeble (Clegg), Madeline Duggan (Sash), Tom Alexander (George), Alicia Ambrose-Bayly (Tallulah / Alana Kelly), Carla Mendonca (Evangeline Horton), Rupert Vansittart (Darius Horton), Emily Woodward (Frances Horton), Joe Jameson (Berrigan Horton), Carlyss Peer (Diane Howard), Atilla Akinci (Dieter Fendelman), Paul Panting (Freddie), Lauren Cornelius (Maxine Mitchell), Bethan Dixon Bate (Landlady) and Nicholas Briggs (The Daleks). Other parts played by members of the cast.

Gallifrey needs every Time Lord to fight the Time War. A summons has been issued across the universe to its prodigals. Whatever their skills, the war effort can use them. Susan’s call up papers have arrived, and unlike her grandfather, she is willing to join her people’s battle and finally return home. Because Susan knows the Daleks, and she will do her duty...1.Sphere of Influence by Eddie Robson. Susan’s first mission is one of diplomacy. The Sense-Sphere could prove a valuable ally to Gallifrey. But she is not the only one who knows the Sensorites of old. Susan will have the support of an old friend. Ian Chesterton is about to rejoin the adventure he left a lifetime ago! 2.The Uncertain Shore by Simon Guerrier. Susan and Commander Veklin are on the trail of a spy. Under cover on a ravaged world, they find a weary population, trapped, and waiting for the inevitable. But one among them is a traitor.The Time War is coming to Florana, and Susan will face a struggle to simply survive...3. Assets of Warby Lou Morgan. Cardinal Rasmus believes that Susan’s special abilities will help him assess a new weapons project.On a secret military base, creatures from the vortex are being bred for war. Gallifrey’s scientists think they can be used as assets against the Daleks. But the Orrovix are not easily tamed. 4.The Shoreditch Intervention by Alan Barnes. When Susan’s TARDIS is intercepted, she is given a highly classified mission.Earth, 1963 is a nexus point in the Time War, but the timelines must be negotiated carefully. Mods and rockers are not the only dangers on the streets of Shoreditch. In Susan’s past, the Daleks are waiting. But so is the Doctor! Cast:Carole Ann Ford (Susan),William Russell (Ian Chesteron), Paul McGann (The Doctor), Beth Chalmers (Veklin),Damian Lynch (Rasmus),Nicholas Briggs (The Daleks/Fyodor),Laura Aikman (Lootsa),Roly Botha (Rennis), Ian Brooker (Guard/Strato/Sensorite), Louis Davison (Franko/Policeman), Hugh Fraser (Second Elder), Trudie Goodwin (Faith),Simon Ludders (Monty/Ogron 1),Tom Mahy (JP/Rocker 2), Vincenzo Nicoli (Vibax),Dan Starkey (Yeorgi/Ogron 2),Claire Vousden (Investigator/First Elder), BeckyWright (Alex/Lehena).Other parts played by members of the cast.

The Doctor and Martha follow a trail of clues across wild and wonderful alien worlds, to find the location of the legendary lost spaceship, The Infinite. They soon discover that they are not alone in their quest - the evil Baltazar is also searching for the ancient starship, and wants to use its powers in order to destroy Earth and rule the galaxy.

Will the Doctor and Martha succeed in The Infinite Quest?

This is the full-length version of the animated series, first broadcast as part of Totally Doctor Who.