The BBC has released a number of clips looking at the production of the latest Doctor Who episode.

Written by Being Human creator Toby Whithouse, ‘Under the Lake’ aired last night on BBC One.

When an Underwater Base comes under attack, the Doctor and Clara must save the frightened crew and defeat an impossible threat. But what is behind these terrifying events? And can they really be haunted by ghosts?

> Buy Season 9 on DVD on Amazon.

> Buy Season 9 on Blu-ray on Amazon.

Watch the videos…

Doctor Who continues next weekend on BBC One with ‘Before the Flood’.

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

What did you think of ‘Under the Lake’? Let us know below…