On their mission to explore the Mariana Trench at the very bottom of the ocean, the deepest and most inhospitable place on Earth, the crew of the deep sea vehicle Erebus make an unusual and startling discovery. A battered blue police box. As the Doctor, Romana and K9 join them on their journey, the submariners soon discover that the TARDIS is not the only unusual find lurking on the sea floor.

The Doctor and Romana find themselves in the Proxima System, where enigmatic Conglomerate CEO Cuthbert has been conducting his infamous 'experiment'. An experiment which might accidentally rip the universe apart. Meanwhile, living conditions on Proxima Major have become harsh and hostile. Climate change has turned the landscape into a freezing wasteland and an alien power has condemned much of the population to life inside internment camps.

The Doctor and Leela find themselves in the middle of London at the time of a new energy crisis. The GlobeSphere Corporation seems to have all the answers - but several thousand protestors beg to differ. What is the connection between the National Gallery and a base on the moon? Has radical thinker Damien Stephens simply sold out, or does he have a more sinister agenda?

The Doctor, Romana and newly elected President Sheridan Moorkurk take on the all-consuming powers of business tycoon Cuthbert and his vast Conglomerate. But the situation goes beyond a struggle for political power. Cuthbert is intent on revenge on creatures he feels have attacked his interests. But when his revenge looks like it's leading to interspecies war, the Doctor knows the stakes couldn't be higher. The Laan are on the move. Is it too late to prevent the destruction of all life on Earth?

Sheridan Moorkurk has just been elected president of Earth...And what's more, she's starting to hear voices. Meanwhile, the Doctor and Romana encounter a mass of aliens heading to Earth - aliens who have already made the mistake of upsetting the infamous Cuthbert, all-powerful CEO of The Conglomerate, by destroying one of his space platforms. Will the Doctor and Romana be able to avert interspecies war that will destroy all life on Earth?

Britain. The height of the Roman occupation. The Doctor has brought Leela to ancient Norfolk to learn about her ancestors...but has no idea how much of an education she is going to get. Because this is the time of Boudica's rebellion. When the tribe of the Iceni rises up and attempts to overthrow the Roman masters. As Leela begins to be swayed by the warrior queen's words, the Doctor has to make a decision: save his friend...or save history itself?

The first time the fearsome Kraals attempted to take over the Earth, with the help of their android agents, things didn't go quite according to plan - thanks to the time-travelling alien Doctor and his allies at UNIT. This time Marshal Grinmal and his belligerent cohorts are ready for them. This time they'll make no mistakes. This time Chief Scientist Tyngworg has not just one plan but a backup plan and a backup backup plan worked out.

They call him The Pugilist. It is the dawn of a new century and a vigilante is on the loose. The scourge of the criminal underclass. The saviour of the virtuous and the protector of the weak. The police are baffled, the public enamoured...but Professor George Litefoot and Henry Gordon Jago are on the case. Or at least they will be when they've finished their beer. What is the source of The Pugilist's spectacular supernatural powers? Is he alone in his noble quest?

The legend dates back to Roman times, at least: a great White Worm, as wide as a man, slithers out of the rocks of the Dark Peak Gap to take animals, sometimes even children, for its food. When the Doctor and Leela arrive in the wilds of Derbyshire only to get caught up in the hunt for a missing girl, they soon discover that the legend of the Worm is very much alive - even now, in 1979. Worse still, it seems that the Doctor isn't the only renegade Time Lord on the trail of this deadly and mysterious Worm....

The Doctor and Romana are enjoying a leisurely lifestyle as the Lord and Lady of a London townhouse. But trouble never stays away from them for long, and before they know it a chance discovery of alien technology leads them deep into the heart of the English countryside, where a malign presence lurks. As the Doctor dodges deadly butlers and ferocious gamekeepers, Romana is faced with a malevolent aunt and an even deadlier peril - marriage. Directed by Ken Bentley.

A new edition of the collection featuring each of the Doctor's full-cast BBC radio adventures—and more. Also included in this new edition is a 45-minute conversation with Elisabeth Sladen, recorded exclusively for BBC Audio in 2004.

Big Finish's first Fourth Doctor adventure. A great jumping-on point.... After saying their good-byes to Professor Litefoot and Henry Gordon Jago, the Doctor and Leela respond to an alien distress call beamed direct from Victorian England. It is the beginning of a journey that will take them to the newly built Space Dock Nerva...where a long overdue homecoming is expected. A homecoming that could bring about the end of the human race. Written and directed by Nicholas Briggs.

In January 2014, Tom Baker celebrated his 80th birthday. In March 2014, Tom sat down with Nicholas Briggs to look back over his 80 amazing years - his youth, his early acting career, his great success with Doctor Who and beyond...and his return to his most famous role with Big Finish. This candid and intimate interview forms two fascinating hours of engaging entertainment in the unique company of Mr. Baker.

The planet Chloris is very fertile, but metal is in short supply, and has therefore become extremely valuable. A huge creature, with most unusual physical properties, arrives from an alien planet and can provide Chloris with metal from its own unlimited supplies, in exchange for chlorophyll.

Zagreus sits inside your head. Zagreus lives among the dead. Zagreus sees you in your bed and eats you when you're sleeping....

The Doctor and Romana find themselves in the Proxima System, where enigmatic Conglomerate CEO Cuthbert has been conducting his infamous 'experiment'. An experiment which might accidentally rip the universe apart. Meanwhile, living conditions on Proxima Major have become harsh and hostile. Climate change has turned the landscape into a freezing wasteland and an alien power has condemned much of the population to life inside internment camps.

The Doctor and Leela find themselves in the middle of London at the time of a new energy crisis. The GlobeSphere Corporation seems to have all the answers - but several thousand protestors beg to differ. What is the connection between the National Gallery and a base on the moon? Has radical thinker Damien Stephens simply sold out, or does he have a more sinister agenda?

Big Finish's first Fourth Doctor adventure. A great jumping-on point.... After saying their good-byes to Professor Litefoot and Henry Gordon Jago, the Doctor and Leela respond to an alien distress call beamed direct from Victorian England. It is the beginning of a journey that will take them to the newly built Space Dock Nerva...where a long overdue homecoming is expected. A homecoming that could bring about the end of the human race. Written and directed by Nicholas Briggs.

The Doctor, Romana and newly elected President Sheridan Moorkurk take on the all-consuming powers of business tycoon Cuthbert and his vast Conglomerate. But the situation goes beyond a struggle for political power. Cuthbert is intent on revenge on creatures he feels have attacked his interests. But when his revenge looks like it's leading to interspecies war, the Doctor knows the stakes couldn't be higher. The Laan are on the move. Is it too late to prevent the destruction of all life on Earth?

When the Doctor and Donna visit London's Technology Museum for a glimpse into the future, things don't go to plan. The most brilliant IT brain in the country can't use her computer. More worrying, the exhibits are attacking the visitors, while outside, people seem to be losing control of the technology that runs their lives. Is it all down to simple human stupidity, or is something more sinister going on?

The Doctor and Romana are enjoying a leisurely lifestyle as the Lord and Lady of a London townhouse. But trouble never stays away from them for long, and before they know it a chance discovery of alien technology leads them deep into the heart of the English countryside, where a malign presence lurks. As the Doctor dodges deadly butlers and ferocious gamekeepers, Romana is faced with a malevolent aunt and an even deadlier peril - marriage. Directed by Ken Bentley.

Zagreus sits inside your head. Zagreus lives among the dead. Zagreus sees you in your bed and eats you when you're sleeping....

The legend dates back to Roman times, at least: a great White Worm, as wide as a man, slithers out of the rocks of the Dark Peak Gap to take animals, sometimes even children, for its food. When the Doctor and Leela arrive in the wilds of Derbyshire only to get caught up in the hunt for a missing girl, they soon discover that the legend of the Worm is very much alive - even now, in 1979. Worse still, it seems that the Doctor isn't the only renegade Time Lord on the trail of this deadly and mysterious Worm....

The Lost Stories: adventures that were originally written for the Doctor Who television series but never made. Now available to hear for the first time... The Tardis has been drawn to Blackpool in the year 1985, where the Doctor intends to investigate a dangerous space/time vortex...while enjoying some local attractions along the way. But an old enemy is watching from his base deep within the amusement park, a timeless being who craves revenge.

Donna Noble has never been lucky in love. So when - one day - her Prince does come, she is thrilled to have the wedding of all weddings to look forward to. Though the Doctor isn't holding his breath for an invitation. And her future mother-in-law is certainly not amused. But on the big day itself, Donna finds her castle under siege from the darkest of forces, marching at the head of a skeleton army. When it looks like even the Doctor can't save the day, what will Queen Donna do to save her people from Death itself?

Tom Baker stars as the Fourth Doctor in 15 full-cast audio dramas written by Paul Magrs. Also included in this edition are a previously unheard interview with Tom Baker, outtakes from the original studio sessions, promotional trailers and a PDF booklet featuring sleeve notes by writer Paul Magrs.

The Doctor and Charley travel to the remote Cimmerian System to unravel the mystery of its sun. But darkness has already embraced the scientific base on Cimmeria IV in more ways than one. In a fight for survival, the Doctor must use all his wits against a deadly artificial lifeform and an ancient race whose return to the Cimmerian System threatens suffering and death on an apocalyptic scale. Written and directed by Nicholas Briggs.

'Prison in Space' by Dick Sharples, adapted by Simon Guerrier: A relaxing break for the Doctor and his companions Jamie and Zoe becomes something decidedly more sinister when they are arrested for trespassing. But what has happened to the planet Earth? And how has the malevolent Chairman Babs gained control? As the Doctor and Jamie are incarcerated in a prison that they can never escape from, Zoe is forced to change sides....

The universe is in grave danger. The very fabric of time and space is being altered. The Doctor and Lucie must race against time to prevent the destruction of everything they hold dear. They may have to sacrifice everything to save the universe. Even themselves....

The richest man in the galaxy has just bought a backwards planet with no obvious mineral wealth in the outer reaches of the universe. An obscure mystical sect has been revived after centuries of neglect. A new race of aliens are hunting for prey. Why? As the Doctor and Lucie attempt to discover the answer, it becomes clear that someone is attempting to resurrect the past - and they need a Time Lord to help them achieve it. This release also includes bonus interviews with the cast.