A newly regenerated Doctor is taken to the Rani’s base by Urak the Tetrap, while Mel meets some of the Lakertyans – and falls into one of the Rani’s traps.

The Rani’s impersonation of Mel backfires badly because Urak can't tell the difference, while the Doctor attempts to learn the secret of the Loyhargil.

The furious Rani begins to slaughter the Lakertyans, so Mel rallies the survivors, while the Doctor is readied to donate his mind to the Rani’s grotesque experiment.

As Mel convinces the Lakertyans fight back, the Tetraps turn on the Rani and the Doctor ensures the missile is deflected away from the asteroid.

The legendary Paradise Towers is supposed to be the height of luxury but when the Doctor and Mel arrive, they find it is as far from a paradise as possible.

With the Doctor condemned to death by the caretakers and their bizarre rulebook, Mel faces cannibalistic OAPS. Is Pex going to be the true hero of Paradise Towers?

Mel and Pex play cat and mouse with the lethal cleaner robots while the Doctor and the surviving Kangs learn all about Kroagnon the Great Architect.

Kroagnon has been reborn, and is using the Chief Caretaker’s reanimated corpse to move around Paradise Towers. To stop him the Doctor must teach the residents teamwork.

The Doctor and Mel win a trip to Disneyland in 1959 but after an accident in space, they actually end up in South Wales instead, along with an assassin and his intended victim.

Gavrok and the Bannermen have arrived on Earth, searching for Delta and slaughter the holidaymakers without compunction to draw her out.

As Billy and Ray do what they can to help save Delta and the baby, the Doctor and Goronwy the beekeeper face Gavrok and his Bannermen one last time.

On Iceworld, the Doctor and Mel meet Ace, who has found herself there after a timestorm. While Ace nearly joins Kane’s mercenaries, the Doctor and Glitz explore the ice caverns.

The Doctor and Glitz meet the infamous dragon, which is really a biomechanoid. Meanwhile Kane turns on his allies, as he cannot trust anyone in his search for the dragonfire.

Shown the archive by the biomechanoid, the Doctor discovers that Kane is from the dead world of Proamon. Mel witnesess the destruction of the Nosferatu and Ace faces temptation.

The Doctor and Ace return to the England of 1963, the same time as the Doctor and Susan used to live in a scrap yard in Totters Lane. Returning to the school where Susan studies, the Doctor discovers that all is not as it should be.

Renegade Daleks battle Imperial Daleks for control of the Hand of Omega.

The Doctor discovers the difference between the two Dalek factions and why they want a stellar manipulator.

The streets of East London shake under a civil war being fought between the Daleks.

The Happiness Patrol walk the streets of Terra Alpha, destroying all the killjoys, on the orders of the despotic Helen A. And in the Kandy Kitchen, something terrible lurks.

The Doctor escapes the Kandyman while Ace meets the Pipe People. Later, fleeing for her life, Ace is captured and selected to audition for the Happiness Patrol.

As the Doctor leads the Pipe People towards reclaiming their world, Helen A faces betrayal from those closest to her and the Kandyman comes to a sticky end.

A group of Neo-Nazis in South America are seeking the Nemesis Statue – as is a shuttle full of Cybermen and the mysterious Lady Peinforte from the 17th century.

The Cybermen have the Nemesis Statue but Lady Peinforte and Richard fight back because they were prepared with gold-tipped arrows and De Flores still has a plan to set in motion.

The Nemesis Statue is alive, thanks to Lady Peinforte's insanity, and with De Flores's Nazi’s wiped out by the Cybermen, Nemesis claims it has secrets to reveal.

Bellboy and Flowerchild escape the Psychic Circus but are pursued by the Chief Clown. The Doctor and Ace meet other visitors to Segonax, some of whom are not what they seem.

The mysterious family watching the acts within the ring, dissatisfied with Nord, destroy him. Captain Cook goes to extreme measures to ensure he’s not the next to displease them.

Ace and Bellboy team up to stop the Chief Clown while the Doctor realises that he is next into the ring. The Captain has another trick up his sleeve and shows Mags's true colours.

The Gods of Ragnarok are revealed and while waiting for Ace to escape the Chief Clown, the Doctor must entertain them as long as possible in the dimension of the Dark Circus.

As UNIT are transporting a nuclear warhead around Carbury, knights in armour arrive to contine waging a war that began thousands of years ago, but in a wholly different dimension.

The Doctor and Ace explore King Arthur’s spaceship deep under Lake Vortigern, while Brigadier Lethbridge-Stewart arrives in Carbury where he encounters Morgaine.

[Language may cause offense.] Furious at her inability to find and engage Arthur in battle, Morgaine threatens to unleash the Destroyer upon the planet unless the Doctor gives her what she wants.

The Brigadier slays the Destroyer while Morgaine takes control of UNIT's nuclear warhead and prepares to start a countdown that will destroy Earth forever.

The Doctor and Ace explore Victorian house Gabriel Chase and realise it hides just as many dark secrets in its Drawing Room as it does in the dark cellar.

The Doctor and Scotland Yard’s finest, Inspector Mackenzie, attempt to question Josiah Smith while both Light and Control emerge from their respective slumbers.

Only Redvers, still searching for the elusve Saxe-Coburg, seems to be able to withstand Light and communicate with Control and Ace realises her past actions need to be dealt with.

As Russian forces approach the English coastline, an ancient evil stirs beneath the surface of the water. For Ace and the Doctor, a deadly game of revenge has begun.

The Viking runes in the crypt contain a secret to Ace’s past, while Millington and Judson’s Ultima machine offers to break the chains of the Wolves of Fenric.

The Haemovores attack St Jude’s church and the insane Millington willingly sacrifices his men. Doctor Judson dies, only to be reborn as the true evil, Fenric himself.

The Ancient Haemovore stands upon the Earth once again, determined to change the future by erasing the past and Ace finally feels love for her mother.

Trying to work out why people have been disappearing from Perivale, Ace is cornered by a Cheetah-Person on a horse called Kara, who transports her to a far-off planet.

The Doctor and a number of people from Perivale follow Ace to the Cheetah-People’s world, where the Master lies in wait. He cannot leave without the Doctor's assistance.

As the alien world dies around them, the Doctor and the Master fight like animals before escaping to Earth, where their war ends. And somewhere else, the tea is getting cold.