The hugely powerful Key to Time has been split into six segments, all of which have been disguised and hidden throughout time and space. Now the even more powerful White Guardian wants the Doctor to find the pieces. With the first segment successfully retrieved, the Doctor, Romana and K9 trace the second segment of the Key to the planet Calufrax. But when they arrive at exactly the right point in space, they find themselves on exactly the wrong planet - Zanak.

Chance. Misfortune. Coincidence. These are the weapons of choice for the Doctor’s latest enemies. And those enemies are very, very hungry. For Ruby Sunday, this Christmas Eve is a birthday she’ll never forget. It’s the day she joins the Doctor on board a Goblin ship. The day she learns of dangers from beyond the universe. The day her life really begins...or, perhaps, the day it ends.

When young Mel’s business partner, Sabalom Glitz embarks on yet another “get rich quick” scheme, it marks the start of an epic, death-defying murder-mystery in space. After barely escaping the snares of a murderous galactic cult, Mel searches for fellow survivors in a nearby spaceship graveyard – while Glitz looks to fill his pockets. But the discovery of a spaceship with its crew in suspended animation, and incredible secrets on board, leaves the duo stranded with no way off. Mel revives the crew – and then the murders start.

A visit to the Grand Canyon begins with disaster for the Doctor and Peri, when the TARDIS plunges into a ravine. The travellers' only hope is to descend to the valley on foot and then track the course of the Colorado river. Their perilous journey is fraught with danger, even before they encounter a band of 19th Century explorers led by Major John Wesley Powell. Joining the watery expedition, the Doctor and Peri begin to despair of ever seeing the TARDIS again. As food supplies dwindle, so do the group's options. This is a journey which some of them will never return.

When the Doctor and Ruby arrive on Cavia, they meet a gentle local who is certain that she has been taken for study by creatures from the stars. The Doctor is concerned to find mysterious meteors appearing in the sky, while strange robotic creatures crowd the forests, watching everything and waiting for… what?

On the serene planet Deva Loka, an expeditionary force from Earth is dangerously out of control. It's not only the peaceful race of the Kinda who are at risk. A gentle stroll in the lush jungle leads the Doctor and Adric to an unexpected confrontation - and puts them at the mercy of a maniac. But it is Tegan, lulled to sleep by mysterious wind-chimes, who comes closest to a danger than threatens not only her sanity but the existence of the whole planet.

The Doctor and Donna are trapped on board a mysterious spacecraft. Fate of the crew: unknown. Fate of the universe if what’s on board gets out: terminal.

Toby Longworth reads this original adventure for the Thirteenth Doctor and Graham, as played on TV by Jodie Whittaker and Bradley Walsh. It's 1970, and record-breaking explorer Silvia Sandstrom has completed an epic lone drive to the North Pole. But as she activates her on-board experimental equipment, her vehicle is swallowed by a massive hole in the ice. Meanwhile the TARDIS is drawn to an arid wasteland, also apparently at the North Pole. There the Doctor and Graham meet Silvia - but it's clear that she is a woman out of her own time.

An Escape Room with a sting in its tail is the setting for the Doctor and Jo's latest encounter with a familiar enemy. Three young graduates and their tutor race against time to crack the codes, open the exit door, and obtain 'A New Life' - at least, that's what the publicity said. As the Doctor observes proceedings, he forms a growing suspicion that something far more sinister lurks on the other side of the door. What's worse, the room appears set to eliminate anyone who doesn't make the grade.

Geoffrey Beevers reads this exciting novelisation of a classic TV adventure for the Fourth Doctor. The Doctor is suddenly summoned to Gallifrey, the home of the Time Lords, where his ghastly hallucinations of the president’s assassination seem to turn into reality. When the Doctor is arrested for the murder, a hideous, dark, cowled figure is gleefully watching in the shadows. In a battle of minds, the Doctor faces renegade Time Lord the Master inside a nightmare world created by his old enemy’s imagination.

What did Osgood do the morning of the Day of the Doctor? What happened to Tegan before Arc of Infinity, and why does it involve strange sentient lights in the Australia outback? What was the Tenth Doctor doing in a hall of mirrors, right before Planet of the Dead? Answers to all these questions lie in an incredible collection of Doctor Who short stories that give a glimpse into the moments just before we saw the Doctor step on screen.

The Fishmen of Kandalinga takes the First Doctor to a planet of water, and a re-match with the alien Voord first encountered on Marinus. Planet of Bones see the Second Doctor, Ben and Polly enjoying hospitality on the planet Harmony - until a dreadful secret is uncovered. In The Phaser Aliens, the Third Doctor and Jo visit Australia to help with invisible UFOs, whilst the Fourth Doctor and Sarah are accused of being spies in Life Anew. The Fifth Doctor finds himself in an alien court of law in The Volcanis Deal, and then the Sixth Doctor and Peri are sent on a mission from Gallifrey.

Jemma Redgrave, Clare Higgins, Nicola Bryant and Dan Starkey are among the readers of this exclusive collection of nine original audio adventures. Join the Twelfth Doctor, as played on TV by Peter Capaldi, as he meets friends and enemies new and old on these journeys in time and space.

The waters of the Pacific Ocean form the backdrop of this foray into Eighteenth Century seafaring for the Doctor and Martha, when the TARDIS materialises on board the Blue Groper sailing ship. Grudgingly accepted as stowaways by Captain Sadler's crew, the travellers learn that the ship is on a mission to Luna Puesta, 'the land where the moon has set'. There, just off the coast of New Zealand, Professor James Tomlinson hopes to locate a missing archaeological link between dinosaurs and man.

High on the summit of a bleak Yorkshire moor, the Scar Hill Hotel is used to bad weather. Yet, on a dark afternoon in January, the ferocious snowstorm that engulfs the hotel surprises even its managers, Mike and Jess. Also caught off guard are the handful of paying guests, all now stranded until rescue teams can get through. When Mike doesn't return from a recce, and two new arrivals introduce themselves as the Doctor and Rose, a night of terror begins. Something is out there in the snow, hunting.

Ryland Grace is the sole survivor on a desperate, last-chance mission - and if he fails, humanity and the Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.

It’s 1984, and life has changed beyond recognition. Airstrip One, formerly known as Great Britain, is a place where Big Brother is always watching, and nobody can hide. Except, perhaps, for Winston Smith. Whilst working at the Ministry of Truth, rewriting history, he secretly dreams of freedom. And in a world where love and sex are forbidden, where it’s hard to distinguish between friend and foe, he meets Julia and O’Brien and vows to rebel.

Inheriting your uncle's supervillain business is more complicated than you might think. Particularly when you discover who's running the place. Charlie's life is going nowhere fast. A divorced substitute teacher living with his cat in a house his siblings want to sell, all he wants is to open a pub downtown, if only the bank will approve his loan. Then his long-lost uncle Jake dies and leaves his supervillain business (complete with island volcano lair) to Charlie. But becoming a supervillain isn't all giant laser death rays and lava pits.

Six days ago, astronaut Mark Watney became one of the first people to walk on Mars. Now, he's sure he'll be the first person to die there. After a dust storm nearly kills him and forces his crew to evacuate while thinking him dead, Mark finds himself stranded and completely alone with no way to even signal Earth that he’s alive - and even if he could get word out, his supplies would be gone long before a rescue could arrive. But Mark isn't ready to give up yet.

Jazz Bashara is a criminal. Well, sort of. Life on Artemis, the first and only city on the moon, is tough if you're not a rich tourist or an eccentric billionaire. So smuggling in the occasional harmless bit of contraband barely counts, right? Not when you've got debts to pay and your job as a porter barely covers the rent. Everything changes when Jazz sees the chance to commit the perfect crime, with a reward too lucrative to turn down.