The BBC has released two trailers for the next episode of Doctor Who.

Written by Being Human creator Toby Whithouse, ‘Before the Flood’ will air at 8.25pm on Saturday 10 October on BBC One.

> Buy Season 9 on DVD on Amazon.

> Buy Season 9 on Blu-ray on Amazon.

Watch the trailers…

The official synopsis reads: “On a remote Army outpost, a fearsome alien warlord – the Fisher King – sets in motion a twisted plan to ensure his own survival. The ripples will be felt around the universe. Is this chain of events inevitable? And can the Doctor do the unthinkable?”

Doctor Who showrunner Steven Moffat teased: “In the eerie remains of a town that never was, something is stalking the Doctor and his friends. A desperate battle for survival is underway, but this time our heroes already know which of them is going to lose. With the past and the future hanging in the balance, the Doctor is breaking the rules to win the day. Can anything stop the Fisher King? And more importantly, who composed Beethoven’s 5th?”

> Here’s everything we know about Season 9 so far.

Are you looking forward to ‘Before the Flood’? Let us know below…