WARNING: This post contains spoilers for Under the Lake. If you wish to remain completely spoiler-free, click away now!
The BBC has released a new preview clip from this Saturday’s episode of Doctor Who, Under the Lake.
You can watch the preview below:
Under the Lake airs on Saturday, 3 October at 8.25 p.m. on BBC One and 9 p.m. EST/8 p.m. CST on BBC America.