4-th episode of 9-th season "Doctor Who"

What "Doctor Who" 4-th episode about

On a remote army outpost, a fearsome alien warlord called 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?

Episode number: 4

Episode name: "Before The Flood (2)"

Episode release date: 10 october 2015 at 20:25

Status: aired