'My name is Bliss,' said the newcomer, 'and I bring great news for you all!'

The new owners of a Second World War aerodrome promise a golden dawn of prosperity for the East Anglian village of Culverton.  The population rejoices - with one or two exceptions.  Former Spitfire pilot Alec Whistler knows the aerodrome of old, having found a strange, jade-coloured crystal there years before…

When black-shirted troops appear on the streets, Whistler takes his suspicions to his old friend Brigadier Lethbridge-Stewart.  The Doctor and Jo are sent to investigate and soon discover that all is not well in the seemingly idyllic village.

What are the black coffin-like objects being unloaded at the aerodrome?  What horror lies behind Legion International's impeccable façade?  And what is the monstrous creature growing and mutating in the marsh?

As Culverton gears up for its summer fête, the Doctor finds himself involved in a race against time to prevent a massive colonisation of Earth.  For the last of the Gaderene are on their way…

I HAVE DONE ENOUGH!

Ace has never known the Doctor so withdrawn and melancholic. He is avoiding her company, seeking solace in the forgotten rooms and labyrinthine passages of his ancient time machine.

Perhaps he will find the peace he years for on his favourite planet, Earth, in the second half of the twentieth century - in the isolated village of Crook Marsham, to be precise, in 1968, the year of peace, love and understanding.

But one by one the villagers are being killed. The Doctor has to act, but for once he seems helpless, indecisive, powerless.

What are the signals from space that are bombarding the radio telescope on the moor? What is the significance of the local legends from the Civil War? And what is the aeons-old power that the Doctor is unable to resist?

"I tell you - we will cut off the King's head.  Aye, with the crown on it!"

It is December 1648.  Although victorious over the Cavaliers in the Civil Wars, the Roundheads are struggling to retain power.  Plans are afoot to spirit King Charles from his prison, and the Doctor and his companions become embroiled in the intrigue...

Ben finds himself press-ganged and on board a mysterious ship to Amsterdam.  Polly is an unwitting accomplice in a plot to rescue the King, and the Doctor and Jamie find themselves arrested and imprisoned in the Tower of London under suspicion of conspiracy.

Can the Doctor and Jamie escape, manage to find Ben and Polly and still ensure that history remains on its proper course?

'No time. They have come. they have come at last.'

The Doctor and Bernice visit Betrushia, a planet famous for its beautiful ring system. They soon discover that the rain-drenched jungles are in turmoil. A vicious, genocidal war is raging between the lizard-like natives. the ground itself is wracked by mysterious earthquakes. And an unknown force is moving inexorably forwards, devastating everything in its path.

Ace wanted out; she's resting on a neighbouring world. But from the outer reaches of space, a far greater threat is approaching Betrushia, and even Ace may find it impossible to escape.

With time running out, the Doctor must save the people of Betrushia from their own terrible legacy before the wrath of St Anthony's Fire is visited upon them all.