10 Darkest Alternate Timelines In Doctor Who

10. The Year That Never Was (Last Of The Time Lords)

Due to the Doctor's close association with humanity, planet Earth is basically a constant battleground in the Doctor Who universe, and at the end of Series 3, this resulted in the Master seizing control, ruling the planet with an iron fist and creating a timeline that came to be known as The Year That Never Was.

This nightmarish 12-month period - which began when the Master hijacked the Doctor's TARDIS, travelled to the 21st century, and became Prime Minister of Britain, as you do - involved one tenth of humanity being straight-up killed by the Toclafane, murderous metallic balls that possessed an arsenal of deadly weapons.

The rest of humanity was enslaved, the Doctor was captured by the Master (and, embarrassingly, was locked in a bird cage), and normal life came screeching to a halt. People lived in constant fear, with some starving, some hiding, and some running.

The one glimmer of hope came in the form of Martha Jones, and in the end, her determination and strong will allowed her to help the Doctor rise to full strength, and in turn, he was able to bring the Master's dictatorship to an end. Time was reversed, and The Year That Never Was... well, it never was!