The Doctor's Regenerations (Doctor Who)

The Doctor's worst enemies, The Daleks, The Cybermen, The Angels and The Silence, return, as the doctor's eleventh life comes to a close, and his twelfth life begins.

As the Dalek fleet begin their attack on the Earth, the Doctor and his allies make one final stand.

Chellak and his men attack Jek's base. The Dr. crash-lands the ship, and must escape from his captors to find the antidote to the Spectrox poisoning and save Peri. He does so, but at a staggering cost.

With the aid of the Sisterhood of Karn, the Eighth Doctor regenerates into the War Doctor.

K'Anpo persuades the Doctor he must face his fear and return the crystal to the Great One.But first they need to get past Barnes and his men.

The Cybermen take over the base again, apparently to stop the humans using the Z-Bomb, but then the Doctor realises they intend to use it themselves to destroy Earth.

In 2013, something terrible is awakening in London's National Gallery; in 1562, a murderous plot is afoot in Elizabethan England; and somewhere in space an ancient battle reaches its devastating conclusion.

With almost everyone on Earth now recast in his image, The Master controls the Earth. He's shocked however when he realises one person hasn't changed; Donna Noble. The Doctor soon understands what the pounding in the Master's head is; it's the Time Lords, who are trying to return and re-establish Gallifrey. If they succeed, it'll mean the Last Great Time War will re-start, and all the horrors which came with it. In order to stop Rasillon's mad plan, the Doctor must make a choice. Finally, the Ood's prophecy for the Doctor becomes true, and he takes the TARDIS on a trip, to see friends for one last time, before he's to regenerate.

Forced to work together to save the universe from collapsing, the Doctor, the Master and Tegan use the Master's Tardis to travel to a giant satellite dish on Earth. Meanwhile Adric and Nyssa are taken to safety by the mysterious Watcher.

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

The newly-regenerated Doctor takes on the Master on the turn of the millennium, 31 December 1999.

The Rani, needing the Doctor's expertise, shoots down his TARDIS, crash-landing it on planet Lykertya where the Doctor dies and subsequently regenerates. She biochemically induces selective amnesia before disguising herself as Mel in order to angle him deceptively into repairing one of her broken machines. The real Mel? Left behind in the TARDIS, alive but unconscious, where she's found by a grim rebel Lakertyan who then makes off with her.