The new series of Doctor Who continues tonight as Clara discovers a new menace from another dimension.

In this weekend’s episode Flatline, the Doctor’s faithful companion comes up against an enemy that exists beyond human perception. But how do you hide when even the walls are no protection?

It’s written by Jamie Mathieson, directed by Douglas MacKinnon and airs on BBC One at the slightly earlier time of 8:25pm.

We’ll be discussing the adventure as soon as it’s finished, from 9:10pm, and in the meantime you can share your anticipation for the episode – and check out an introduction and preview clips – below.

• Introduction to Flatline – Peter Capaldi, Jenna Coleman and Steven Moffat introduce ‘an extraordinary episode…’

• Smaller on the Outside? - With the Doctor trapped, Clara takes charge and ownership of the sonic!

• They’re in the walls… – Can Clara keep it together as her world falls apart?

“Are you my mummy?” Let’s hope not! Click here to rate this weekend’s episode.