Two RAF fighter jets are on a training flight over Northeast Scotland when one of them is plucked from the air and promptly disappears. UNIT are called in, and the Doctor and Brigadier Lethbridge-Stewart are soon on the scene. They enlist the help of a local military officer - a young lieutenant by the name of Mike Yates. The Doctor discovers a link to the recumbent stone circles that are plentiful in this part of Scotland. The stones are thousands of years old and are soon revealed to hold a terrible secret.

Responding to a desperate summons from the Doctor's future self, he and Peri find themselves on a sailing ship in 1492, where the crewmen are gripped by superstitious fear. They say the Devil walks among them, stalking and striking them down. Even though they have landed in paradise, they fear that 'El Diablo' himself will drag them over the edge of the world and into the depths of Hell.

In the far future, the inhabitants of Tarsus Six face a desperate struggle to evacuate their world before their sun, Tarsus Ultra, collapses into a cataclysmic spatial anomaly. When the Doctor navigates the Tardis to a space station orbiting Tarsus Six, Ace assumes that he intends offer their assistance. But it soon becomes clear that the Doctor has an agenda of his own. With the Tardis immobilised, Ace realises that their own lives are as much in danger as those of the fleeing inhabitants.

The Doctor answers a psionic distress call being sent from England in the 1920s. There, in the environs of a fairground, he is reunited with an old friend: Harry Houdini. To Adric and Nyssa the name means very little, but to the Doctor's companion, Tegan, he is a legend. An escape artist extraordinaire, Houdini's reputation will last for decades. But how does Harry knows so much about Tegan?

Shoreditch, London, 1963. The Beatles have beaten John Smith and the Common Men to number one, and satellites are being launched in outer space. Back down on Earth, strange goings-on are occurring: the normally placid teenagers of Coal Hill are running riot, and a master thief is stealing highly specialised equipment. Schoolgirl Susan Foreman just wants an easy life for herself and her grandfather, the mysterious Doctor.

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?

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

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 library on Kar-Charrat is one of the wonders of the universe. It is also hidden from all but a few select species. The Doctor and Ace discover that the librarians have found a new way of storing data - a wetworks facility - but the machine has attracted unwanted attention, and the Doctor soon finds himself pitted against his oldest and deadliest enemies - the Daleks! Written by: Mike Tucker. Directed by: Nicholas Briggs.

It's 1812, and the Doctor, Steven and Dodo get ready to spend their winter in a Russian village. The French are on their way, but that's not the only invasion the travellers will have to deal with. Written by: Marc Platt. Directed by: Nigel Fairs.