The TARDIS is drawn to the planet of the Time Lords where both the Doctor and the War Lord are placed on trial.

To prove his loyalty to the Aliens, the Doctor is ordered to reprocess his friends while the Security Chief finally uncovers evidence of the War Chief's treachery.

The Doctor, Jamie and Zoe realise they have arrived in the trenches of the First World War, where the sinister General Smythe accuses them of espionage.

The Doctor and Zoe manage to escape from Ransom and attempt to rescue Jamie from the military prison.

The Doctor and his friends realise the area is divided into different time zones and decide to return to the château to obtain a map from Smythe.

The Doctor and the processing machine have been taken by the Aliens but the resistance are making plans to attack the control centre.

The Doctor attempts to rescue Zoe and Carstairs while Jamie and Lady Jennifer try to convince the resistance of the true nature of Von Weich and the others.

The Cybermen have launched their deadly megatron bomb which will destroy all life on Earth unless the Doctor can deactivate the homing signal.

The Doctor and Zoe are transported to the control centre of the war games while Jamie and Lady Jennifer fall foul of American Revolution soldiers.

The Doctor, Jamie and Carstairs manage to return to the 1917 zone only to be captured by Smythe, who orders the Doctor executed.

Captain Turner manages to rescue Jamie and the others, while the Doctor begins working on a way to protect everyone from the Cybermen's hypno-sound signal.

With the entire world unconscious apart from the Doctor and his friends, the Cybermen are poised to invade and only Zoe, the Brigadier and a missile crew can stop them.

The scientist examines the captured resistance fighters and realises Jamie is a new arrival on the planet while the Doctor, Zoe and Carstairs try to rescue their friends.

The TARDIS arrives in a white void, having made an emergency take-off to escape the volcanic eruption on Dulkis. The Doctor, Jamie and Zoe find themselves in the Land of Fiction, where characters from the imagination come to life, and The Master, the mysterious ruler, chooses the Doctor to take his place.

The Doctor and Jamie are taken prisoner by their mysterious observers and have a reunion with an old friend while Zoe and Isobel carry out their own investigation of IE.

The Doctor and Jamie tell the Brigadier about the Cybermen but with Rutledge under Vaughn's control he is powerless to act.

With the TARDIS destroyed, the Doctor, Jamie and Zoe find themselves in a strange forest patrolled by mysterious soldiers.

With Jamie and Zoe having been turned into fiction, the Doctor must find a way to save them without suffering the same fate or becoming part of the Master Brain.

The Doctor and the newly formed UNIT must stop a Cybermen Invasion and a Sinister Industrialist in league with them

The Doctor and Jamie enlist the help of UNIT to rescue Zoe and Isobel before trying to find out what Vaughn is really up to.

The Doctor realises that the travellers are trapped in a world where fiction is real and where creatures are a threat if people believe in them.

The Doctor and Jamie return to the IE factory in search of Zoe and Isobel, where they meet with Professor Watkins and fall foul of Vaughn.

The Doctor, Jamie and Zoe reach the citadel at the centre of the land, where they finally encounter the Master of the Land of Fiction.

21st century Earth is entirely dependent on the T-Mat transport system but the control centre on the moon has stopped functioning. Meanwhile, the Doctor, Jamie and Zoe meet the one man who can solve the crisis.

The Doctor manages to create a rain storm to destroy the Martian fungus before trying to find a way to stop the Ice Warriors' invasion fleet.