Before the Flood (Doctor Who)

255b – "Before the Flood"
Doctor Who episode
Cast
Others
Production
Directed byDaniel O'Hara
Written byToby Whithouse
Script editorNick Lambon
Produced byDerek Ritchie
Executive producer(s)Steven Moffat
Brian Minchin
Music byMurray Gold
SeriesSeries 9
Running time2nd of 2-part story, 42 minutes
First broadcast10 October 2015 (2015-10-10)
Chronology
← Preceded by
"Under the Lake"
Followed by →
"The Girl Who Died"
List of episodes (2005–present)

"Before the Flood" is the fourth episode of the ninth series of the British science fiction television series Doctor Who. It was written by Toby Whithouse and directed by Daniel O'Hara. It was first broadcast on 10 October 2015, and is the second part of a two-part story; the first part, "Under the Lake", aired on 3 October.

Set in Scotland in 1980 and 2119, the episode is a "bootstrap paradox" where the alien time traveller the Twelfth Doctor (Peter Capaldi) prevents the invasion plot of an alien called the Fisher King (Neil Fingleton and Peter Serafinowicz) while also saving the life of the Doctor's companion Clara (Jenna Coleman) in the future through the use of information the Doctor received that he would later send to himself.

The episode was watched by 6.05 million viewers and received positive reviews, who praised Capaldi’s performance, but criticised the utilisation of the Fisher King.